UNITED
STATES
ENVIRONMENTAL
PROTECTION
AGENCY
WASHINGTON,
D.
C.
20460
OFFICE
OF
PREVENTION,
PESTICIDES
AND
TOXIC
SUBSTANCES
MEMORANDUM
11/
26/
2001
Subject:
Linuron
Tolerance
Reassessment
Eligibility
Decision
Residue
Chemistry
Considerations.

Reregistration
Case
No.:
0047
PC
Code:
035506
DP
Barcode
No.:
272368
FROM:
John
S.
Punzi,
Ph.
D.,
Chemist
Reregistration
Branch
II
Health
Effects
Division
[7509C]

THROUGH:
Alan
Nielsen,
Branch
Senior
Scientist
Reregistration
Branch
II
Health
Effects
Division
[7509C]

TO:
Tom
Myers,
Chemical
Review
Manager
Special
Review
and
Reregistration
Division
[7508C]

Attached
is
a
review
of
the
Linuron
Tolerance
Reassessment
Eligibility
Decision
Residue
Chemistry
Considerations.
The
Residue
Chemistry
Chapter
for
the
Linuron
Reregistration
Eligibility
Document
(RED)
was
published
2/
18/
94.
An
Addendum
to
the
Linuron
Residue
Chemistry
RED
Chapter
was
issued
on
2/
21/
95.
This
updated
review
(post­
FQPA)
of
the
available
residue
chemistry
database
was
completed
by
the
Dynamac
Corporation
under
supervision
of
HED
and
has
undergone
secondary
review/
modification
in
Reregistration
Branch
2
for
consistency
with
current
EPA
policies.

Conclusions/
Recommendations
The
residue
chemistry
database
is
incomplete.
1.
A
review
of
the
product
labels
and
the
supporting
residue
data
indicate
that
the
following
label
amendments
are
required:

°
The
product
labels
include
directions
for
use
for
a
number
of
tank
mixes.
In
many
cases,
the
tank
mix
products
are
no
longer
registered
for
use
on
the
subject
crop.
Inappropriate
tank
mix
recommendations
are
noted
in
Table
2.

°
A
number
of
grazing/
feeding
restriction
are
considered
to
be
impractical
by
HED
and
must
be
removed
from
the
appropriate
product
labels.

°
Several
crops/
use
directions
require
preharvest
intervals
(PHIs)
to
be
specified.

°
Product
labels
which
contain
use
directions
for
asparagus
must
be
modified
to
make
it
clear
that
the
maximum
combined
application
rate
is
4.0
lb
ai/
A/
season
when
more
than
one
type
of
application
(preemergence,
postemergence,
or
application
at
the
fern
stage)
is
made.

°
The
product
label
for
EPA
Reg.
No.
1812­
245
includes
two
tables
of
application
rates
at
the
end
of
the
soybean
use
directions
which
are
titled
"Soybeans:
Broadcast
Application
­
Linex
4L
and
Sencor
DF
and
Lasso"
and
"Soybeans:
Broadcast
Application
­
Linex
4L
and
Sencor
DF
and
Duel
8E."
The
label
should
be
modified
to
clarify
application
timing
for
these
tables;
it
is
not
clear
to
which
application
type
(preemergence
or
postemergence)
these
application
rates
pertain..

2.
The
reregistration
requirements
for
residue
analytical
methods
are
not
fulfilled.
The
registrants
must
propose
the
current
data
collection
method,
a
GC/
ECD
method,
as
an
enforcement
method
for
plant
and
animal
commodities
to
replace
the
current
colorimetric
enforcement
method,
which
is
outdated.

3.
The
reregistration
requirements
for
storage
stability
are
not
fulfilled.
The
final
reports
for
ongoing
storage
stability
studies
on
cotton
gin
byproducts,
cotton
processed
commodities,
and
sweet
corn
commodities
must
be
submitted.
In
addition,
information
pertaining
to
sample
storage
intervals
and
conditions
for
samples
of
parsnips
and
for
the
animal
feeding
studies
are
required
(MRIDs
00018209,
00018210,
00018375,
00018383,
00018450,
and
00018775).

4.
The
reregistration
requirements
for
magnitude
of
the
residue
in
plants
are
not
fulfilled
for:
celery;
corn,
field,
aspirated
grain
fractions;
corn,
sweet
(K+
CWHR);
corn,
sweet,
forage;
corn,
sweet,
stover;
cotton
gin
byproducts;
sorghum
forage
and
stover;
wheat
forage,
hay,
and
straw.
Additional
crop
field
trial
data
and/
or
information
is
required
for
these
commodities.

5.
Tolerances
for
linuron
residues
of
concern
in
milk
must
be
proposed.

cc:
JSPunzi
(RRB2),
Linuron
Reg.
Std.
File,
Linuron
SF,
RF,
LAN.
RD/
I:
RRB2
Chem
Review
Team
(01/
26/
2001),
Alan
Nielsen
(11/
30/
2001).
7509C:
RRB2:
John
S.
Punzi:
CM2:
Rm
804E:
703­
305­
7727:
11/
26/
2001.
LINURON
PC
Code
035506;
Case
0047
Tolerance
Reassessment
Eligibility
Decision
Residue
Chemistry
Considerations
September
26,
2001
Contract
No.
68­
W­
99­
053
Submitted
to:
U.
S.
Environmental
Protection
Agency
Arlington,
VA
Submitted
by:
Dynamac
Corporation
20440
Century
Boulevard,
Suite
100
Germantown,
MD
20874
LINURON
TOLERANCE
REASSESSMENT
ELIGIBILITY
DECISION
RESIDUE
CHEMISTRY
CONSIDERATIONS
PC
Code
035506;
Case
0047
TABLE
OF
CONTENTS
page
A.
INTRODUCTION
........................................................
1
B.
USE
PATTERN
SUMMARY
...............................................
1
1.
Product
List
.........................................................
1
2.
Use
Pattern
Table
....................................................
2
C.
SUMMARY
OF
RESIDUE
CHEMISTRY
DATA
REQUIREMENTS
...............
24
D.
RESIDUE
CHARACTERIZATION
..........................................
32
General
Discussion
on
Residue
Chemistry
of
Linuron
..............................
32
1.
Nature
of
the
Residue
in
Plants
..........................................
32
2.
Nature
of
the
Residue
in
Livestock
.......................................
34
3.
Residue
Analytical
Methods
............................................
35
4.
Multiresidue
Method
Testing
...........................................
36
5.
Storage
Stability
Data
................................................
36
6.
Magnitude
of
the
Residue
in
Crop
Plants
..................................
38
Root
and
Tuber
Vegetables
Group
.......................................
38
Leafy
Vegetables
Group
..............................................
39
Legume
Vegetables
Group
.............................................
41
Foliage
of
Legume
Vegetables
Group
.....................................
41
Cereal
Grain
Group
..................................................
41
Forage,
Fodder,
and
Straw
of
Cereal
Grains
Group
..........................
44
Miscellaneous
Commodities
............................................
46
7.
Magnitude
of
the
Residue
in
Processed
Food/
Feed
...........................
47
Corn,
field
.........................................................
47
Cotton
............................................................
48
Potato
............................................................
48
Sorghum,
grain
......................................................
49
Soybean
..........................................................
49
Wheat
............................................................
49
8.
Magnitude
of
the
Residue
in
Meat,
Milk,
Poultry,
and
Eggs
.....................
49
9.
Reduction
of
Residues
................................................
52
3
10.
Confined
and
Field
Accumulation
in
Rotational
Crops
.........................
52
E.
TOLERANCE
REASSESSMENT
SUMMARY
................................
53
1.
Tolerance
Reassessments
for
Linuron
.....................................
53
Tolerances
Listed
Under
40
CFR
§180.184(
a)
.............................
53
Tolerances
To
Be
Proposed
Under
40
CFR
§180.184(
a)
.....................
54
Tolerances
Listed
Under
40
CFR
§180.184(
c)
.............................
54
Tolerances
To
Be
Proposed
Under
40
CFR
§180.184(
c)
.....................
54
Pending
Tolerance
Petitions
............................................
54
2.
Tolerance
Reassessment
Table
..........................................
56
3.
Codex/
International
Harmonization
.......................................
59
F.
BIBLIOGRAPHY
.......................................................
60
1.
Study
Citations
.....................................................
60
2.
Agency
Memoranda
Citations
..........................................
67
LINURON
TOLERANCE
REASSESSMENT
ELIGIBILITY
DECISION
RESIDUE
CHEMISTRY
CONSIDERATIONS
PC
Code
035506;
Case
0047
A.
INTRODUCTION
Linuron
[3­(
3,4­
dichlorophenyl)­
1­
methoxy­
1­
methylurea]
is
a
selective
herbicide
that
is
classified
as
a
nonquantifiable
Group
C
carcinogen.
Linuron,
which
is
formulated
as
dry
flowable
(DF)
or
flowable
concentrate
(FlC)
formulations,
is
currently
registered
by
Griffin
Corporation,
Drexel
Chemical
Company,
and
Micro­
Flo
Company
for
pre­
or
postemergence
use
on
asparagus,
carrot,
celery,
field
corn,
sweet
corn,
cotton,
parsley,
parsnip,
potato,
sorghum,
soybean,
and
winter
wheat.

The
nature
of
the
residue
in
plants
and
animals
is
adequately
understood
based
on
plant
metabolism
studies
on
corn,
soybeans,
and
potatoes
and
animal
metabolism
studies
on
goats
and
poultry.
Currently
tolerances
for
plant
and
animal
commodities
are
expressed
in
terms
of
linuron
per
se.
The
HED
Metabolism
Committee
has
determined
that
the
residues
of
concern
are
linuron
and
its
metabolites
convertible
to
3,4­
dichloroaniline,
expressed
as
linuron
(D.
McNeilly,
11/
17/
93);
residues
of
3,4­
dichloroaniline
per
se
need
not
be
regulated
separately.

The
Residue
Chemistry
Chapter
for
the
Linuron
Reregistration
Eligibility
Document
(RED)
was
published
2/
18/
94.
An
Addendum
to
the
Linuron
Residue
Chemistry
RED
Chapter
was
issued
on
2/
21/
95.
The
Residue
Chemistry
Chapter
of
the
Linuron
Reregistration
Standard
was
issued
6/
30/
82,
and
the
Residue
Chemistry
Chapter
of
the
Linuron
Reregistration
Standard
Update
was
issued
6/
20/
90.

B.
USE
PATTERN
SUMMARY
1.
Product
List
A
search
of
the
Agency's
Reference
Files
System
(REFS)
on
6/
14/
01
indicates
that
there
are
five
linuron
end­
use
products
(EPs)
registered
to
Griffin
Corporation,
Drexel
Chemical
Company,
and
Micro­
Flo
Company
that
have
uses
on
food
and/
or
feed
crops
(Table
1).
At
the
time
of
the
02/
94
RED,
there
were
15
linuron
EPs
with
food/
feed
uses;
these
were
registered
to
E.
I.
du
Pont
de
Nemours
and
Company,
Griffin
Corporation,
Drexel
Chemical
Company,
Platte
Chemical
Company,
and
Micro­
Flo
Company.
Since
the
2/
94
RED,
all
the
Dupont
EPs
have
been
canceled
except
for
one
EP
(EPA
Reg.
No.
352­
394)
which
was
transferred
to
Griffin
Corporation
(EPA
Reg.
No.
1812­
417)
and
then
subsequently
canceled.
In
addition,
one
Drexel
EP
(EPA
Reg.
No.
19713­
79)
and
one
Platte
EP
(EPA
Reg.
No.
34704­
703)
have
been
canceled.
There
are
13
SLN
registrations
with
food/
feed
uses
associated
with
linuron.
2
Table
1.
Linuron
EPs
with
Uses
on
Feed/
Food
Crops
Registered
to
Griffin
Corporation,
Drexel
Chemical
Company,
and
Micro­
Flo
Company.

EPA
Reg.
No.
Label
Acceptance
Date
Formulation
Class
Product
Name
Griffin
Corporation
1812­
245
a
3/
27/
98
4
lb/
gal
FlC
Linex®
4L
Herbicide
1812­
320
b
4/
15/
99
50%
DF
Lorox®
DF
Drexel
Chemical
Company
19713­
97
5/
17/
94
4
lb/
gal
FlC
c
Linuron
4L
Weed
Killer
19713­
251
4/
1/
94
50%
DF
Linuron
DF
Herbicide
Micro­
Flo
Company
51036­
78
12/
22/
93
4
lb/
gal
FlC
Linuron
4L
Weed
Killer
a
Including
SLN
Nos.
AL000002,
AR000007,
LA000013,
MS000003,
TN000005,
and
TX000012.
b
Including
SLN
Nos.
AR000008,
CO970001,
ID970004,
LA000015,
MS000011,
TN000006,
and
WA000036.
c
Product
formulation
is
listed
as
emulsifiable
concentrate
(EC)
in
REFs;
however,
upon
examination
of
the
product
label,
the
formulation
should
be
classified
as
a
flowable
concentrate
(FlC).

2.
Use
Pattern
Table
A
comprehensive
summary
of
the
registered
use
patterns
of
linuron,
based
on
the
product
labels
registered
to
Griffin
Corporation,
Drexel
Chemical
Company,
and
Micro­
Flo
Company,
is
presented
in
Table
2.
A
tabular
summary
of
the
residue
chemistry
science
assessments
for
reregistration
of
linuron
is
presented
in
Table
3.
The
conclusions
listed
in
Table
3
regarding
the
tolerance
reassessment
eligibility
are
based
on
the
use
patterns
registered
by
the
basic
producers,
Griffin
Corporation
and
Drexel
Chemical
Company.
When
end­
use
product
DCIs
are
developed,
RD
should
require
that
all
end­
use
product
labels
(e.
g.,
MAI
labels,
SLNs,
and
products
subject
to
the
generic
data
exemption)
be
amended
such
that
they
are
consistent
with
the
basic
producers'
labels.

A
review
of
the
above
EP
labels
and
the
supporting
residue
data
indicate
that
the
following
label
amendments
are
required:

°
The
product
labels
include
directions
for
use
for
a
number
of
tank
mixes.
In
many
cases,
the
tank
mix
products
are
no
longer
registered
for
use
on
the
subject
crop.
The
following
tank
mix
recommendations
must
be
removed
from
all
relevant
product
labels:
chloramben
on
any
crop
(no
currently
registered
chloramben
products);
dinoseb
on
any
crop
(no
currently
registered
dinoseb
products);
oryzalin
on
soybeans;
and
propachlor
on
soybeans.
Also,
the
product
labels
for
the
50%
DF
formulations
(1812­
320
and
19713­
251)
include
tank
mix
recommendations
for
3
Bronco®,
a
product
which
was
cancelled
3/
9/
00.
Inappropriate
tank
mix
recommendations
are
highlighted
in
Table
2.

°
The
following
grazing/
feeding
restriction
are
considered
to
be
impractical
by
HED
and
must
be
removed
from
the
appropriate
product
labels:
restrictions
against
the
grazing
or
feeding
of
treated
sorghum
forage
or
silage
to
dairy
animals
(EPA
Reg.
Nos.
1812­
320,
19713­
97,
19713­
251,
and
51036­
78);
restrictions
against
the
feeding
of
cotton
gin
trash
to
livestock
(EPA
Reg.
Nos.
1812­
245,
19713­
251,
and
51036­
78
as
well
as
SLN
Nos.
AL000002,
AR0000007,
AR000008,
LA000013,
LA000015,
MS000001,
MS000011,
TN000005,
TN000006,
and
TX000012);
and
restrictions
against
the
grazing/
feeding
of
immature
wheat
plants
to
livestock
(EPA
Reg.
Nos.
1812­
245,
19713­
97,
and
51036­
78).

°
The
following
crops/
use
directions
require
preharvest
intervals
(PHIs)
to
be
specified:
postemergence
uses
on
sorghum
(EPA
Reg.
Nos.
1812­
245,
1812­
320,
19713­
97,
19713­
251,
and
51036­
78);
application
to
newly
planted
or
direct­
seeded
asparagus
(EPA
Reg.
Nos.
1812­
245,
1812­
320,
19713­
97,
19713­
251
and
SLN
No.
ID970004);
postemergence
application
to
carrots
grown
in
NY
(EPA
Reg.
Nos.
1812­
245
and
1812­
320);
postemergence
application
to
field
corn
(EPA
Reg.
Nos.
1812­
245,
19713­
97,
19713­
251,
and
51036­
78);
posttransplant
application
to
celery
(EPA
Reg.
No.
1812­
245,
1812­
320,
19713­
97,
19713­
251,
and
51036­
78);
and
postemergence
application
to
cotton
(EPA
Reg.
Nos.
1812­
245,
19713­
251,
and
51036­
78
as
well
as
SLN
Nos.
AL000002,
AR0000007,
AR000008,
LA000013,
LA000015,
MS000001,
MS000011,
TN000005,
TN000006,
and
TX000012).

°
Product
labels
which
contain
use
directions
for
asparagus
must
be
modified
to
make
it
clear
that
the
maximum
combined
application
rate
is
4.0
lb
ai/
A/
season
when
more
than
one
type
of
application
(preemergence,
postemergence,
or
application
at
the
fern
stage)
is
made.
In
addition,
the
available
crop
field
trial
data
for
asparagus
are
sufficient
to
support
application
of
linuron
to
asparagus
in
all
areas
of
the
U.
S.
Therefore,
the
registrants
may
wish
to
modify
product
labels
to
remove
the
restrictions
limiting
use
on
asparagus
to
certain
states.

°
The
product
label
for
EPA
Reg.
No.
1812­
245
includes
two
tables
of
application
rates
at
the
end
of
the
soybean
use
directions
which
are
titled
"Soybeans:
Broadcast
Application
­
Linex
4L
and
Sencor
DF
and
Lasso"
and
"Soybeans:
Broadcast
Application
­
Linex
4L
and
Sencor
DF
and
Duel
8E."
The
label
should
be
modified
to
clarify
application
timing
for
these
tables;
it
is
not
clear
to
which
application
type
(preemergence
or
postemergence)
these
application
rates
pertain.
4
(continued;
footnotes
follow)
Table
2.
Food/
Feed
Use
Patterns
Subject
To
Reregistration
for
Linuron
(PC
Code
035506).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
Asparagus
Soil
broadcast
or
band
Direct
seeded
or
newly
planted
crowns
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[1812­
245]
1.0­
2.0
1
2.0
Not
specified
(NS)
Use
limited
to
CA,
MI,
MN,
NC,
OR,
and
WA
for
a
single
preemergence
application
and
up
to
two
postemergence
applications
(when
ferns
are
6­
18
inches)
to
direct
seeded
or
newly
planted
crowns.
Direct
seeded
or
newly
planted
crowns
Postemergence
Ground
0.5­
1.0
2
NS
Soil
broadcast
or
band
Direct
seeded
or
newly
planted
crowns
Preemergence
(after
planting)
Ground
50%
DF
[1812­
320]
[ID970004]
1.0­
2.0
1
2.0
NS
Use
limited
to
CA,
HI,
ID,
MI,
MN,
NC,
ND,
NJ
(preemergence
only),
OR,
WA,
and
WI
for
a
single
preemergence
application
and
up
to
two
postemergence
applications
(when
ferns
are
6­
18
inches)
to
direct
seeded
or
newly
planted
crowns.
Direct
seeded
or
newly
planted
crowns
Postemergence
Ground
0.5­
1.0
2
NS
Soil
broadcast
or
band
Direct
seeded
or
newly
planted
crowns
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[19713­
97]

50%
DF
[19713­
251]
1.0­
2.0
1
2.0
NS
Use
limited
to
CA
for
a
single
preemergence
application
and
up
to
two
postemergence
applications
(when
ferns
are
6­
18
inches)
to
direct
seeded
or
newly
planted
crowns.
Direct
seeded
or
newly
planted
crowns
Postemergence
0.5­
1.0
2
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
5
(continued;
footnotes
follow)
Asparagus
(continued)

Established
beds
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[1812­
245]
1.0­
2.0
1
4.0
NS
Use
limited
to
CA,
MI,
MN,
NC,
OR,
and
WA
for
a
single
preemergence
application
and
up
to
four
postemergence
applications
(before
cutting
season
or
immediately
after
cutting)
to
established
beds.
A
one
year
PBI
has
been
established
for
any
other
crop
if
more
than
2.0
lb
ai/
A/
season
is
applied.
Established
beds
Postemergence
Ground
0.5­
1.0
4
1
Established
beds
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[19713­
97]

50%
DF
[19713­
251]
1.0­
2.0
1
4.0
NS
Use
limited
to
CA
for
a
single
preemergence
application
and
up
to
four
postemergence
applications
(before
cutting
season
or
immediately
after
cutting)
to
established
beds.
Established
beds
Postemergence
Ground
0.5­
1.0
4
1
Established
beds
Preemergence
(after
planting)
Ground
50%
DF
[1812­
320]
1.0­
2.0
1
2.0
NS
Use
limited
to
CA,
HI,
ID,
MI,
MN,
NC,
ND,
NJ
preemergence
only),
OR,
WA,
and
WI
for
a
single
preemergence
application
and
up
to
three
postemergence
applications
(before
cutting
season
or
immediately
after
cutting)
to
established
beds.
Established
beds
Postemergence
Ground
0.5­
1.0
3
1
Established
beds
Preemergence
(after
planting)
Ground
50%
DF
[ID970004]
1.0­
2.0
1
4.0
NS
Use
limited
to
ID
for
a
single
preemergence
application
and
up
to
four
postemergence
applications
(before
cutting
season
or
immediately
after
cutting)
to
established
beds.
A
one
year
PBI
has
been
established
for
any
other
crop
if
more
than
2.0
lb
ai/
A/
season
is
applied.
Established
beds
Postemergence
Ground
0.5­
1.0
4
1
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
6
(continued;
footnotes
follow)
Asparagus
(continued)

Directed
spray
Postharvest
Ground
4
lb/
gal
FlC
[1812­
245]
2.0­
4.0
1
4.0
NS
Use
limited
to
CA,
MI,
MN,
NC,
OR,
and
WA
for
a
single
postemergence
directed
spray
application
to
the
base
of
plant
in
the
fern
stage.
A
one
year
PBI
has
been
established
for
any
other
crop
if
more
than
2.0
lb
ai/
A/
season
is
applied.

50%
DF
[1812­
320]
2.0
1
2.0
NS
Use
limited
to
CA,
HI,
ID,
MI,
MN,
NC,
ND,
NJ
(preemergence
only),
OR,
WA,
and
WI
for
a
single
postemergence
directed
spray
application
to
the
base
of
plant
in
the
fern
stage.

4
lb/
gal
FlC
[19713­
97]

50%
DF
[19713­
251]
2.0­
4.0
1
4.0
NS
Use
limited
to
CA
for
a
single
postemergence
directed
spray
application
to
the
base
of
plant
in
the
fern
stage.
A
one
year
PBI
has
been
established
for
any
other
crop
if
more
than
2.0
lb
ai/
A/
season
is
applied.

50%
DF
[ID970004]
2.0­
4.0
1
4.0
NS
Use
limited
to
ID
for
a
single
postemergence
directed
spray
application
to
the
base
of
plant
in
the
fern
stage.
A
one
year
PBI
has
been
established
for
any
other
crop
if
more
than
2.0
lb
ai/
A/
season
is
applied.
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
7
(continued;
footnotes
follow)
Carrot
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[1812­
245]
0.5­
1.5
1
1.5
NS
Use
limited
to
FL,
MI,
NJ,
OH,
and
WI.

4
lb/
gal
FlC
[19713­
97]
0.5­
1.0
for
FL
0.5­
1.5
for
MI,
OH,
and
WI
1
1.0
(FL)

1.5
(MI,
OH,
and
WI)
14
Use
limited
to
FL,
MI,
OH,
and
WI.

50%
DF
[19713­
251]
0.5­
1.0
for
FL
0.5­
1.5
for
MI
and
WI
1
1.0
(FL)

1.5
(MI
and
WI)
14
Use
limited
to
FL,
MI,
and
WI.

50%
DF
[1812­
320]
0.5­
1.0
for
CA,
FL,
MN,
ND,
OR,
and
WA
0.5­
1.5
for
MI,
OH,
and
WI
1
1.0
(CA,
FL,
MN,
ND,
OR,
and
WA)

1.5
(MI,
OH,
and
WI)
14
Use
limited
to
CA,
FL,
MI,
MN,
ND,
OH,
OR,
WA,
and
WI.

4
lb/
gal
FlC
[51036­
78]
0.5­
1.5
1
1.5
14
Use
limited
to
MI
and
WI.
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
8
(continued;
footnotes
follow)
Carrots
(continued)

Postemergence
Ground
4
lb/
gal
FlC
[1812­
245]
[19713­
97]

50%
DF
[1812­
320]
[19713­
251
0.75­
1.5
NS
2.0
1.5
(west
of
Rocky
Mountains)
14
Multiple
foliar
applications
for
use
in
the
entire
U.
S.
Postemergence
applications
are
to
be
made
after
carrots
reach
3
inches
in
height.
Maximum
seasonal
rate
includes
preemergence
applications,
if
made.

4
lb/
gal
FlC
[51036­
78]
0.75­
1.5
NS
2.0
14
4
lb/
gal
FlC
[1812­
245]

50%
DF
[1812­
320]
0.125­
0.25
NS
NS
NS
Use
limited
to
NY
for
multiple
broadcast
applications
made
postemergence.
Applications
may
be
made
at
lower
rate
when
carrots
have
at
least
one
fully
developed
true
leaf
or
at
the
higher
rate
to
carrots
having
three
or
more
leaves.

Preemergence
(after
planting)
Ground
50%
DF
[CO970001]
0.125­
0.25
1
2.0
14
Use
limited
to
CO.
Additional
postemergence
applications
may
be
made
as
long
as
the
total
application
rate
does
not
exceed
2.0
lb
ai/
A/
season.

Celery
Foliar
Posttransplant
Ground
4
lb/
gal
FlC
[1812­
245]

50%
DF
[1812­
320]
0.75­
1.5
1
1.5
NS
Use
allowed
in
all
states
except
CA.
Application
is
to
be
made
before
celery
reaches
8
inches
in
height.

0.75­
1.0
1
1.0
NS
Use
limited
to
CA.
Application
is
to
be
made
before
celery
reaches
8
inches
in
height.

50%
DF
[19713­
251]

4
lb/
gal
FlC
[19713­
97]
[51036­
78]
0.75­
1.5
1
1.5
NS
Use
limited
to
east
of
the
Rocky
Mountains.
Application
is
to
be
made
before
celery
reaches
8
inches
in
height.
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
9
(continued;
footnotes
follow)
Corn,
field
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[1812­
245]
Sandy
loam
soils:
0.3­
1.0
1
1.0
NS
Use
limited
to
east
of
the
Rocky
Mountains.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
alachlor
(Lasso®),
propachlor
(EPA
Nos.
19713­
97
and
51036­
78
only),
or
atrazine.
Silt
loam
soils:
0.5­
1.25
1
1.25
Clay
loam
soils:
0.6­
1.5
1
1.5
Preemergence
(after
planting)
Ground
50%
DF
[1812­
320]
Sandy
loam
soils:
0.33­
0.75
1
0.75
NS
Use
limited
to
east
of
the
Rocky
Mountains.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
alachlor
(Lasso®),
propachlor
(Ramrod®),
or
atrazine.
Loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam
soils:
0.5­
0.75
Silty
clay,
silty
clay
loam,
clay,
clay
loam
soils:
0.6­
0.75
50%
DF
[19713­
251]
Sandy
loam
soils:
0.3­
1.0
1
1.0
NS
Use
limited
to
east
of
the
Rocky
Mountains.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
alachlor,
propachlor,
or
atrazine.
Loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam
soils:
0.5­
1.5
1.5
Silty
clay,
silty
clay
loam,
clay,
clay
loam
soil:
0.625­
1.5
1.5
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
10
(continued;
footnotes
follow)
Corn,
field
(continued)

Directed
spray
Postemergence
Ground
4
lb/
gal
FlC
[1812­
245]
[19713­
97]
[51036­
78]
0.625­
1.5
1
1.5
NS
A
single
postemergence
directed
(to
weeds)
spray
application
to
field
corn
at
least
15
inches
in
height.

50%
DF
[19713­
251]
0.625
1
0.625
NS
Corn,
sweet
Directed
spray
Postemergence
Ground
4
lb/
gal
FlC
[19713­
97]
[51036­
78]
0.625­
1.5
1
1.5
NS
A
single
postemergence
directed
(to
weeds)
spray
application
to
sweet
corn
at
least
15
inches
in
height.
50%
DF
[19713­
251]
0.625
1
0.625
NS
Cotton
Directed
spray
Postemergence
Ground
4
lb/
gal
FlC
[1812­
245]
[51036­
78]
[MS000003]

50%
DF
[19713­
251]
0.5­
0.75
2
1.5
(implied)
NS
Use
limited
to
east
of
the
Rocky
Mountains
for
one
or
two
postemergence
directed
(to
weeds)
spray
applications
made
after
cotton
is
at
least
15
inches
tall.
Feeding
forage
or
gin
trash
from
treated
areas
to
livestock
and
grazing
treated
fields
are
prohibited.

Directed
spray
After
last
cultivation
(layby)
Ground
1.0­
1.5
1
1.5
NS
Use
limited
to
east
of
the
Rocky
Mountains
for
a
single
postemergence
directed
(to
weeds)
spray
application
made
after
the
last
cultivation
(layby)
when
cotton
is
at
least
20
inches
tall.
Feeding
forage
or
gin
trash
from
treated
areas
to
livestock
and
grazing
treated
fields
are
prohibited.
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
11
(continued;
footnotes
follow)
Cotton
(continued)

Directed
spray
Postemergence
Ground
4
lb/
gal
FlC
[AL010001]
[AR000007]
[LA000013]
[TN000005]
[TX000012]

50%
DF
[AR000008]
[LA000015]
[MS000011]
[TN000006]
0.5­
0.75
2
1.5
(implied)
NS
Use
limited
to
AL,
AR,
LA,
MS,
TN,
and
TX
for
one
or
two
postemergence
directed
spray
applications
made
after
cotton
is
at
least
8
inches
tall.
Feeding
forage
or
gin
trash
from
treated
areas
to
livestock
and
grazing
treated
fields
are
prohibited.

Directed
spray
After
last
cultivation
(layby)
Ground
1.0­
1.5
1
1.5
NS
Use
limited
to
AL,
AR,
LA,
MS,
TN,
and
TX
for
a
single
postemergence
directed
spray
application
made
after
the
last
cultivation
(layby)
when
cotton
is
at
least
20
inches
tall.
Feeding
forage
or
gin
trash
from
treated
areas
to
livestock
and
grazing
treated
fields
are
prohibited.

Parsley
Preemergence
(after
planting)
Ground
50%
DF
[1812­
320]
Mineral
and
muck
soils:
0.5­
1.5
1
1.5
30
Use
limited
to
east
of
the
Mississippi
River
and
Texas.

Postemergence
Ground
Muck
soils
only:
0.5
1
30
Use
limited
to
east
of
the
Mississippi
River
and
Texas.
Application
should
be
made
after
parsley
has
a
minimum
of
three
true
leaves.

Parsnip
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[1812­
245]
[19713­
97]
[51036­
78]

50%
DF
[1812­
320]
[19713­
251]
0.75­
1.5
1
1.5
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
12
(continued;
footnotes
follow)
Potato
Preemergence
(after
planting)
Ground
or
aerial
4
lb/
gal
FlC
[1812­
245]
Lighter
soils
(sandy
loams,
silty
loams):
0.75­
1.25
1
1.25
NS
Use
limited
to
east
of
the
Rocky
Mountains
for
a
single
preemergence
application.
Application
must
be
made
in
a
minimum
of
3
gal/
A
when
using
aerial
equipment.
Heavier
soils
(silts,
clay
loams):
1.25­
2.0
1
2.0
NS
Sand
soil:
0.5
1
0.5
NS
Use
limited
to
WI
(central
sands
area)
for
a
single
preemergence
application.
Loamy
sand
soil:
1.0
1
1.0
NS
Coarse
soils
(sandy
loam):
0.5­
1.0
1
1.0
NS
Use
limited
to
the
Northeast.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
metolachlor
(Dual
8E).
Medium
soils
(loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam):
0.75­
1.25
1
1.25
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
13
(continued;
footnotes
follow)
Potato
(continued)

Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[19713­
97]
[51036­
78]
Coarser
soils
(sandy
loam,
silt
loam):
0.75­
1.25
1
1.25
NS
Use
limited
to
east
of
the
Rocky
Mountains
for
a
single
preemergence
application.
Finer
soils
(silts,
clay
loams):
1.25­
2.0
1
2.0
NS
Sand
soil:
0.5
1
0.5
NS
Use
limited
to
WI
(central
sands
area)
for
a
single
preemergence
application.
Loamy
sand
soil:
1.0
1
1.0
NS
50%
DF
[19713­
251]
Coarser
soils
(sandy
loam,
silt
loam):
0.75­
1.25
1
1.25
NS
Use
limited
to
east
of
the
Rocky
Mountains
for
a
single
preemergence
application.
Finer
soils
(silts,
clay
loams):
1.25­
2.0
1
2.0
NS
Sand
soil:
0.5
1
0.5
NS
Use
limited
to
WI
(central
sands
area)
for
a
single
preemergence
application.
Loamy
sand
soil:
1.0
1
1.0
NS
Coarse
soils
(sandy
loam):
0.5­
1.0
1
1.0
NS
Use
limited
to
Northeast.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
metolachlor.
Medium
soils
(loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam):
0.75­
1.25
1
1.25
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
14
(continued;
footnotes
follow)
Potato
(continued)

Preemergence
(after
planting)
Ground
50%
DF
[1812­
320]
Coarse
soils
(sandy
loam,
silt
loam):
0.75­
1.25
1
1.25
NS
Use
limited
to
east
of
the
Rocky
Mountains
for
a
single
preemergence
application.
Fine
soils
(silts,
clay
loams):
1.25­
1.5
1
1.5
NS
Coarse
soils
(sandy
loam):
0.5­
1.0
1
1.0
NS
Use
limited
to
Northeast.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
metolachlor
(Dual
8E).
Medium
soils
(loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam):

0.75­
1.25
1
1.25
NS
Sorghum
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[1812­
245]
Sandy
loam
soils:
0.3­
0.75
1
0.75
90
PGI
2
Rotating
to
fall
crops,
sugar
beets,
tobacco,
potatoes
or
other
vegetables
following
treated
sorghum
crop
is
prohibited.
Loam,
silt
loam,
silt,
sandy
clay
or
sandy
clay
loam:
0.5­
1.0
1
1.0
Directed
spray
Postemergence
Ground
0.5­
1.0
1
1.0
90
PGI
A
single
postemergence
directed
(to
weeds)
spray
application
to
sorghum.
Application
may
be
made
at
lower
rate
when
sorghum
is
at
least
12
inches
in
height
or
at
the
higher
rate
when
sorghum
is
at
least
15
inches
tall.
Rotating
to
fall
crops,
sugar
beets,
tobacco,
potatoes
or
other
vegetables
following
treated
sorghum
crop
is
prohibited.
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
15
(continued;
footnotes
follow)
Sorghum
(continued)

Preemergence
(after
planting)
Ground
50%
DF
[1812­
320]
Sandy
loam
soils:
0.25­
0.75
1
0.75
NS
For
use
as
a
tank
mix
with
registered
herbicides.
Grazing
or
feeding
sorghum
forage
or
silage
from
treated
fields
to
dairy
animals
is
prohibited.
Rotating
to
fall
crops,
sugar
beets,
tobacco,
potatoes
or
other
vegetables
following
treated
sorghum
crop
is
prohibited.
3
Loam,
silt
loam,
silt,
sandy
clay,
or
sandy
clay
loam
soils:
0.5­
1.0
1
1.0
NS
Directed
spray
Postemergence
Ground
0.5­
1.0
1
1.0
NS
A
single
postemergence
directed
(to
weeds)
spray
application
to
sorghum.
Application
may
be
made
at
lower
rate
when
sorghum
is
at
least
12
inches
in
height
or
at
the
higher
rate
when
sorghum
is
at
least
15
inches
tall.
Grazing
or
feeding
sorghum
forage
or
silage
from
treated
fields
to
dairy
animals
is
prohibited.
Rotating
to
fall
crops,
sugar
beets,
tobacco,
potatoes
or
other
vegetables
following
treated
sorghum
crop
is
prohibited.
3
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
16
(continued;
footnotes
follow)
Sorghum
(continued)

Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[19713­
97]
[51036­
78]
Sandy
loam
soils:
0.3­
0.75
1
0.75
NS
Use
limited
to
the
Southwest.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
propazine.
The
rotation
of
treated
sorghum
with
any
fall
crop
or
with
sugar
beets,
tobacco,
potatoes,
or
vegetables
is
prohibited.
Silt
loam,
clay
loam
soils:
0.5­
1.0
1
1.0
Sandy
loam
soils:
0.3­
1.0
1
1.0
NS
Use
limited
to
the
Great
Plains.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
propachlor.
The
grazing
or
feeding
of
sorghum
forage
or
silage
from
treated
fields
to
dairy
animals
is
prohibited.
Silt
loam
soils:
0.5­
1.25
1
1.25
NS
Clay
loam
soils:
0.6­
1.5
1
1.5
NS
Directed
spray
Postemergence
Ground
0.5­
1.0
1
1.0
90
PGI
A
single
postemergence
directed
(to
weeds)
spray
application
to
sorghum.
Application
may
be
made
at
the
lower
rate
when
sorghum
is
at
least
12
inches
in
height
or
at
the
higher
rate
when
sorghum
is
at
least
15
inches
tall.
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
17
(continued;
footnotes
follow)
Sorghum
(continued)

Preemergence
(after
planting)
Ground
50%
DF
[19713­
251]
Sandy
loam
soils:
0.3­
1.0
1
1.0
NS
Use
limited
to
the
Great
Plains.
A
single
preemergence
application
may
be
made
as
a
tank
mix
with
propachlor.
The
grazing
or
feeding
of
sorghum
forage
or
silage
from
treated
fields
to
dairy
animals
is
prohibited.
Loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam
soils:
0.5­
1.25
1
1.25
NS
Silty
clay,
silty
clay
loam,
clay,
clay
loam
soils:
0.6­
1.5
1
1.5
NS
Directed
spray
Postemergence
Ground
0.5­
1.0
1
1.0
90
PGI
A
single
postemergence
directed
(to
weeds)
spray
application
to
sorghum.
Application
may
be
made
at
lower
rate
when
sorghum
is
at
least
12
inches
in
height
or
at
the
higher
rate
when
sorghum
is
at
least
15
inches
tall.

Soybean
Conventional
tillage
systems
Preemergence
(after
planting)
Ground
or
aerial
4
lb/
gal
FlC
[1812­
245]
Sandy
loam
soils:
0.1­
1.5
1
1.5
NS
Application
may
be
made
alone
or
as
a
tank
mix
with
alachlor
(Lasso®;
use
limited
east
of
the
Rocky
Mountains),
metolachlor
(Dual
8E),
pendimethalin
(Prowl®),
or
metribuzin
(Lexone®
DF).
Application
must
be
made
in
a
minimum
of
3
gal/
A
when
using
aerial
equipment.
Feeding
of
treated
forage
to
livestock
is
prohibited
following
tank
mix
use
with
Dual
8E.
Loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam
soils:
0.25­
2.0
1
2.0
NS
Silty
clay,
silty
clay
loam,
clay,
clay
loam
soils:
0.4­
3.0
1
3.0
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
18
(continued;
footnotes
follow)
Soybean
(continued)

Conventional
tillage
systems
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[19713­
97]
Sandy
loam
soils:
0.3­
1.5
1
1.5
NS
Application
may
be
made
alone
or
as
a
tank
mix
with
alachlor,
chloramben,
metolachlor,
oryzalin
(Surflan®),
pendimethalin
(Prowl®),
or
propachlor
(seed
crop
only).
Feeding
of
treated
forage
to
livestock
is
prohibited
following
tank
mix
use
with
metolachlor,
oryzalin,
or
propachlor.
Silt
loam
soils:
0.5­
2.0
1
2.0
NS
Clay
loam
soils:
0.6­
3.0
1
3.0
NS
50%
DF
[19713­
251]
Sandy
loam
soils:
0.3­
1.5
1
1.5
NS
Application
may
be
made
alone
or
as
a
tank
mix
with
alachlor,
metolachlor,
or
metribuzin.
Feeding
of
treated
forage
to
livestock
is
prohibited
following
tank
mix
use
with
metolachlor.
A
40­
day
PGI
has
been
established
for
tank
mix
use
with
alachlor.
Loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam
soils:
0.5­
2.0
1
2.0
NS
Silty
clay,
silty
clay
loam,
clay,
clay
loam
soils:
0.6­
3.0
1
3.0
NS
50%
DF
[1812­
320]
Coarse
soils
(sandy
loam):
0.2­
1.0
1
1.0
NS
Application
may
be
made
alone
or
as
a
tank
mix
with
alachlor
(Lasso®),
metolachlor
(Dual
8E),
or
metribuzin
(Lexone®
DF).
Grazing
or
feeding
forage
from
treated
areas
to
livestock
is
prohibited.
Medium
soils
(loam,
silt
loam,
silt,
sandy
clay,
sandy
clay
loam):
0.25­
1.0
1
1.0
NS
Fine
soils
(silty
clay,
silty
clay
loam,
clay,
clay
loam):
0.4­
1.0
1
1.0
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
19
(continued;
footnotes
follow)
Soybean
(continued)

Conventional
tillage
systems
Preemergence
(after
planting)
Ground
4
lb/
gal
FlC
[51036­
78]
Sandy
loam
soils:
0.3­
1.5
1
1.5
NS
Application
may
be
made
alone
or
as
a
tank
mix
with
alachlor
(Lasso®),
chloramben,
and
propachlor
(Ramrod®;
seed
crop
only).
Grazing
or
feeding
of
treated
forage
to
livestock
is
prohibited
following
tank
mix
use
with
propachlor.
Silt
loam
soils:
0.5­
2.0
1
2.0
NS
Clay
loam
soils:
0.6­
3.0
1
3.0
NS
Minimum
or
no­
tillage
systems
Preemergence
(before,
during,
or
after
planting)
Ground
or
aerial
4
lb/
gal
FlC
[1812­
245]
Sandy
loam
soils:
0.3­
1.0
1
1.0
NS
Tank
mix
use
with
paraquat
or
glyphosate.
To
improve
control
of
grasses
and
volunteer
small
grains,
tank
mix
may
be
combined
with
alachlor
(Lasso®)
or
metolachlor
(Dual
8E).
Application
must
be
made
in
a
minimum
of
3
gal/
A
when
using
aerial
equipment.
The
grazing
or
feeding
of
treated
forage
to
livestock
is
prohibited.
Silt
loam
soils:
0.5­
1.25
1
1.25
NS
Clay
loam
soils:
0.6­
1.5
1
1.5
NS
Minimum
or
no­
tillage
systems
Preemergence
(before,
during,
or
after
planting)
Ground
4
lb/
gal
FlC
[19713­
97]
Sandy
loam
soils:
0.3­
1.0
1
1.0
NS
Tank
mix
use
with
paraquat
or
glyphosate.
To
improve
control
of
grasses
and
volunteer
small
grains,
tank
mix
may
be
combined
with
alachlor,
metolachlor,
or
oryzalin
(Surflan®).
Feeding
of
treated
forage
to
livestock
is
prohibited
following
tank
mix
use
with
metolachlor
or
oryzalin.
Silt
loam
soils:
0.5­
1.25
1
1.25
NS
Clay
loam
soils:
0.6­
1.5
1
1.5
NS
50%
DF
[19713­
251]
Sandy
loam
soils:
0.3­
1.5
1
1.5
NS
Application
may
be
made
alone
or
as
a
tank
mix
with
paraquat
or
glyphosate.
To
improve
control
of
grasses
and
volunteer
small
grains,
tank
mix
may
be
combined
with
alachlor,
metolachlor,
or
oryzalin.
Feeding
of
treated
forage
to
livestock
is
prohibited
following
tank
mix
use
with
metolachlor
or
oryzalin.
Loam,
silt
loam,
silt
sandy
clay,
sandy
clay
loam
soils:
0.5­
2.0
1
2.0
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
20
(continued;
footnotes
follow)
Silty
clay,
silty
clay
loam,
clay,
clay
loam
soils:
0.6­
3.0
1
3.0
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
21
(continued;
footnotes
follow)
Soybean
(continued)

Minimum
or
no
tillage
systems
Directed
spray
Postemergence
Ground
4
lb/
gal
FlC
[1812­
245]
0.5­
1.0
2
1.0
60
Use
limited
to
Midsouth
and
Southeast.
Application
is
to
be
directed
to
weeds.
For
single
application,
application
may
be
made
at
lower
rate
when
soybean
is
at
least
8
inches
in
height
(Midsouth)
or
at
the
higher
rate
when
soybean
is
at
least
12
inches
tall
(Southeast).
For
split
applications,
the
first
application
may
be
made
when
soybean
is
12
inches
tall
with
a
7­
day
retreatment
interval.
Feeding
of
treated
forage
or
hay
to
livestock
is
prohibited.

0.5
2
1.0
(implied)
60
Tank
mix
use
with
2,4­
DB.
Application
may
be
made
when
soybean
is
at
least
8
inches
in
height.

4
lb/
gal
FlC
[19713­
97]
0.5­
1.0
1
1.0
60
For
single
application,
application
may
be
made
at
lower
rate
when
soybean
is
at
least
8
inches
in
height
or
at
the
higher
rate
when
soybean
is
at
least
12
inches
tall.
For
split
applications,
the
first
application
may
be
made
when
soybean
is
12
inches
tall
with
a
7­
day
retreatment
interval.
Feeding
of
treated
forage
or
hay
to
livestock
is
prohibited.
0.5
2
1.0
0.5
2
1.0
NS
Tank
mix
use
with
2,4­
DB
or
dinoseb.

Conventional,
minimum,
or
no
tillage
systems
Directed
spray
Postemergence
Ground
50%
DF
[19713­
251]
0.5­
1.0
1
1.0
60
For
single
application,
application
may
be
made
at
lower
rate
when
soybean
is
at
least
8
inches
in
height
or
at
the
higher
rate
when
soybean
is
at
least
12
inches
tall.
For
split
applications,
the
first
application
may
be
made
when
soybean
is
12
inches
tall
with
a
7­
day
retreatment
interval.
Feeding
of
treated
forage
or
hay
to
livestock
is
prohibited.
0.5
2
1.0
(implied)

0.5
2
1.0
(implied)
60
Tank
mix
use
with
2,4­
DB.
Feeding
of
treated
forage
or
hay
to
livestock
is
prohibited.
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
22
(continued;
footnotes
follow)
Soybean
(continued)

Conventional
tillage
systems
Directed
spray
Postemergence
Ground
4
lb/
gal
FlC
[51036­
78]
0.25­
1.0
2
2.0
(implied)
60
Use
limited
to
Midsouth
and
Southeast.
Application
is
to
be
directed
to
weeds.
In
Midsouth,
a
single
application
may
be
made
at
0.25­
0.5
lb
ai/
A
when
soybean
is
at
least
8
inches
in
height.
In
Midsouth
and
Southeast,
a
single
application
may
be
made
at
0.5­
1.0
lb
ai/
A
when
soybean
is
at
least
12
inches
in
height.
A
second
application
may
be
made.
Feeding
of
treated
forage
or
hay
to
livestock
is
prohibited.
Application
may
be
made
alone
or
as
a
tank
mix
with
2,4­
DB.

Minimum
or
no­
tillage
systems
Preemergence
(before,
during,
or
after
planting)
Ground
50%
DF
[1812­
320]
Coarse
soils
(sandy
loam):
0.4­
1.0
1
1.0
NS
Application
may
be
made
alone
or
as
a
tank
mix
with
alachlor
(Lasso®),
metolachlor
(Dual
8E),
oryzalin
(Surflan),
paraquat,
glyphosate
(Roundup®),
and/
or
alachlor
plus
glyphosate
(Bronco®).
Medium
soils
(loam,
silt
loam,
sandy
clay,
sandy
clay
loam):
0.6­
1.0
1
1.0
NS
Fine
soils
(silty
clay,
silty
clay
loam,
clay,
clay
loam):
0.7­
1.0
1
1.0
NS
Table
2
(continued).

Site
Application
Type
Application
Timing
Application
Equipment
Formulation
[EPA
Reg.
No.]
Single
Application
Rate,
lb
ai/
A
Maximum
Number
of
Applications
Maximum
Seasonal
Application
Rate,
ai
Preharvest
Interval,
days
Use
Limitations
1
23
1.
Inappropriate
tank
mix
recommendations
are
highlighted.
The
restricted
entry
interval
(REI)
for
the
4
lb/
gal
FlC
(EPA
Reg.
Nos.
1812­
245
and
19713­
97)
and
50%
DF
(EPA
Reg.
Nos.
1812­
320
and
19713­
251)
formulations
is
24
hours.
The
REI
for
the
4
lb/
gal
FlC
(EPA
Reg.
No.
51036­
78)
formulation
is
12
hours.

The
labels
for
the
4
lb/
gal
FlC
(EPA
Reg.
Nos.
1812­
245,
19713­
97,
and
51036­
78)
and
the
50%
DF
(EPA
Reg.
Nos.
1812­
320
and
19713­
251)
formulations
include
the
following
restrictions:
application
should
not
be
made
on
sand,
loamy
sand,
gravelly
soils
or
exposed
subsoils
nor
on
soils
containing
less
than
1%
organic
matter.

For
EPA
Reg.
Nos.
1812­
245,
1812­
320,
and
19713­
251,
the
following
general
rotational
crop
restrictions
have
been
established:
unless
otherwise
stated,
any
crop
may
be
planted
after
4
months
except
cereals
where
only
barley,
oats,
rye,
and
wheat
may
be
planted;
West
of
the
Rocky
Mountains,
carrots
or
celery
may
be
planted
after
4
months
and
no
other
crop
may
be
planted
within
one
year.
Additional
crop­
specific
restrictions
are
noted
in
the
table.
EPA
Reg.
No.
1812­
320
includes
the
following
additional
restriction:
in
the
state
of
WA,
when
applications
are
made
during
the
months
of
October,
November,
and
December
then
crops
can
be
planted
6
months
after
application.
In
addition,
SLN
No.
WA000036
adds
the
following
rotational
crop
restriction
to
EPA
Reg.
No.
18121­
320:
asparagus,
barley,
carrots,
celery,
corn
(field
and
sweet),
oats,
potatoes,
rye,
soybeans,
and
wheat
may
be
planted
after
4
months
except
when
applications
are
made
during
the
months
of
October,
November
and
December,
for
which
crops
may
be
planted
6
months
after
application;
all
other
crops
may
be
planted
12
months
following
application.

For
EPA
Reg.
No.
19713­
97,
the
following
rotational
crop
restrictions
have
been
established:
if
initial
seeding
fails
to
produce
a
stand,
the
same
crop
may
be
replanted
in
soil
treated
preemergence
with
the
4
lb/
gal
FlC
[EPA
Reg.
No.
19713­
97]
formulation
(or
with
recommended
tank
mixtures).
Thoroughly
rework
soil
application
as
injury
to
the
crop
may
result.
West
of
the
Rocky
Mountains,
carrots
or
celery
may
be
planted
4
months
after
last
application;
unless
otherwise
directed,
no
other
crop
may
be
planted
within
one
year
after
the
last
application.

For
EPA
Reg.
No.
51036­
78,
the
following
rotational
crop
restrictions
have
been
established:
do
not
rotate
crops
used
for
food
or
feed
which
Wheat,
winter
(drill
planted)

Preemergence,
early
postemergence,
or
semi­
dormant
Ground
4
lb/
gal
FlC
[1812­
245]
[19713­
97]
[51036­
78]
0.25­
1.75
1
1.75
(west
of
the
Cascade
Range)

0.75
(east
of
the
Cascade
range)
NS
Use
limited
to
ID,
OR,
and
WA
for
a
single
preemergence,
early
postemergence,
or
semidormant
application
made
in
the
fall
or
winter.
Application
may
be
made
alone
or
as
a
tank
mix
with
bromoxynil.
Grazing
or
feeding
immature
plants
to
livestock
is
prohibited.
A
6­
month
PBI
for
any
rotational
crop
has
been
established.
Table
2
(continued).

24
are
not
registered
for
use
with
linuron
onto
areas
previously
treated
with
this
chemical.

2.
PGI
=
pregrazing
interval.

3.
Label
also
states
that
sorghum
and
field
corn
may
be
planted
within
4
months
and
that
any
crop
may
be
planted
after
4
months.
25
(continued)
C.
SUMMARY
OF
RESIDUE
CHEMISTRY
DATA
REQUIREMENTS
Table
3.
Summary
of
Residue
Chemistry
Data
Requirements
for
Linuron
(PC
Code
035506).

OPPTS
Guideline
No.
Guideline
Description
/
Commodity
§180.184
Tolerances
(ppm)
1
Must
Additional
Data
Be
Submitted?
MRID
Nos.
2
Comments
860.1200
Directions
for
Use
NA
Yes
–
Several
label
amendments
are
required.
3
860.1300
Nature
of
the
Residue
­
Plants
NA
No
00018173
00018176
00027624
00164195
00164196
40084801
4
41716101
5
41716102
5
41938101
6
42542101
7
42548401
8
Metabolism
studies
on
corn,
soybeans,
and
potatoes
are
adequate.

860.1300
Nature
of
the
Residue
­
Animals
NA
No
00029932
42635401
9
43245101
10
Ruminant
and
poultry
metabolism
studies
are
adequate.

860.1340
Residue
Analytical
Method
Plant
commodities
NA
Yes
00018087
00018089
00018127
00018176
The
registrants
must
propose
the
current
GC/
ECD
data
collection
method
as
an
enforcement
method.

Animal
commodities
NA
Yes
00018176
The
registrants
must
propose
the
current
GC/
ECD
data
collection
method
as
an
enforcement
method.

860.1360
Multi­
Residue
Method
NA
No
See
PAM,
Vol.
I,
Appendix
II
No
comment
860.1380
Storage
Stability
Data
Plant
commodities
NA
Yes
00159802
11
41716103
5
42836701
12
42836702
12
42913301
13
42974401
13
43040001
13
43104401
14
43215901
15
43215902
15
43288301
16
43288302
16
43356202
15
43356203
15
43681401
17
The
final
reports
for
ongoing
storage
stability
studies
on
cotton
gin
byproducts
and
cotton
processed
commodities
(up
to
3
months)
and
sweet
corn
commodities
(up
to
6
months)
must
be
submitted.
In
addition,
information
pertaining
to
sample
storage
intervals
and
conditions
for
samples
used
for
tolerance
reassessment
must
be
submitted
for
parsnips.
Table
3
(continued).

OPPTS
Guideline
No.
Guideline
Description
/
Commodity
§180.184
Tolerances
(ppm)
1
Must
Additional
Data
Be
Submitted?
MRID
Nos.
2
Comments
26
(continued)
Animal
commodities
NA
Yes
none
Storage
conditions
and
intervals
for
samples
from
the
animal
feeding
studies
must
be
submitted.
Supporting
storage
stability
data
may
be
needed
if
samples
were
stored
longer
than
one
month
prior
to
analysis.

860.1400
Magnitude
of
the
Residue
­
Water,
Fish,
and
Irrigated
Crops
NA
NA
NA
No
comment
860.1460
Magnitude
of
the
Residue
­
Food
Handling
NA
NA
NA
No
comment
860.1480
Magnitude
of
the
Residue
­
Meat,
Milk,
Poultry,
Eggs
­
Milk,
fat,
meat,
and
meat
byproducts
of
cattle,
goat,
hog,
horse,
and
sheep
1,
fat,
meat,
and
meat
byproducts
No
00018209
00018210
00018375
00018450
00018775
00029932
Adequate
feeding
study
data
are
available
for
tolerance
reassessment,
pending
submission
of
storage
stability
information.

­
Eggs,
fat,
meat,
and
meat
byproducts
of
poultry
None
No
00018383
Tolerances
for
poultry
commodities
are
not
required.

860.1500
Crop
Field
Trials
Root
and
Tuber
Vegetables
Group
­
Carrot
1
No
00018172
00027635
00163267
18
40210901
19
40537601
41503401
20
Adequate
field
trial
data
are
available.

­
Parsnip
0.5
No
00018171
Adequate
field
trial
data
are
available.

­
Potato
1
No
00027635
00163267
18
40210901
19
41452701
20
Adequate
field
trial
data
are
available.
Table
3
(continued).

OPPTS
Guideline
No.
Guideline
Description
/
Commodity
§180.184
Tolerances
(ppm)
1
Must
Additional
Data
Be
Submitted?
MRID
Nos.
2
Comments
27
(continued)
Leafy
Vegetables
Group
­
Celery
0.5
Yes
00018443
40537601
41501501
20
43681401
17
Griffin
Corporation
submitted
IR­
4
residue
data
in
support
of
a
request
for
amended
use
of
the
4
lb/
gal
FlC
and
50%
DF
formulations
on
celery
grown
west
of
the
Rocky
Mountains.
HED
concluded
that
two
additional
field
trials
in
Region
10
are
required
to
fulfill
the
residue
data
requirements.

­
Parsley
0.25
[180.184(
c)]
No
41189801
21
Adequate
field
trial
data
are
available.

Legume
Vegetables
Group
­
Soybean
seed
and
aspirated
grain
fractions
1,
seed
No
00018076
00018206
00027635
00163267
18
40210901
19
43039101
22
Adequate
field
trial
data
are
available
for
soybean
seed.
Residue
data
for
soybean
aspirated
grain
fractions
are
not
required.

Foliage
of
Legume
Vegetables
Group
­
Soybean
forage
and
hay
1,
forage
1,
hay
No
00018076
00018206
00027635
Provided
that
pertinent
labels
are
modified
to
prohibit
the
feeding
of
soybean
forage
and
hay
to
livestock,
no
data
are
required.

Cereal
Grains
Group
­
Corn,
field,
grain
and
aspirated
grain
fractions
0.25,
grain
No
00018171
00018206
00018375
00018382
00018450
00163267
18
40210901
19
40537601
42948501
23
43044101
24
Adequate
data
are
available
for
field
corn
grain.

­
Corn,
pop,
grain
0.25
No
NA
There
are
currently
no
registered
uses
on
popcorn.
Table
3
(continued).

OPPTS
Guideline
No.
Guideline
Description
/
Commodity
§180.184
Tolerances
(ppm)
1
Must
Additional
Data
Be
Submitted?
MRID
Nos.
2
Comments
28
(continued)
­
Corn,
sweet
(K+
CWHR)
0.25
Yes
00018171
00018206
00018375
00018382
00018450
45444101
25
Crop
field
trial
data
from
three
additional
trial
sites
must
be
submitted
to
fulfill
geographic
representation
requirements.
Because
the
data
submitter
(Griffin)
has
deleted
uses
on
sweet
corn
from
product
labels,
a
use
on
sweet
corn
must
be
proposed
prior
to
acceptance
of
the
field
trial
data.

­
Sorghum,
grain
and
aspirated
grain
fractions
0.25,
grain
No
00018171
00018148
40537601
41377601
Adequate
field
trial
data
are
available
for
sorghum
grain.
Residue
data
for
sorghum
aspirated
grain
fractions
are
not
required.

­
Wheat,
grain
and
aspirated
grain
fractions
0.25,
grain
No
00018171
00018175
40537601
42605901
26
Adequate
field
trial
data
are
available
for
wheat
grain.
Residue
data
for
wheat
aspirated
grain
fractions
are
not
required.

Forage,
Fodder,
and
Straw
of
Cereal
Grains
Group
­
Corn,
field,
forage
and
stover
1,
forage
1,
fodder
No
00018171
00018206
00018375
00018382
00018450
00163267
18
40210901
19
40537601
42948501
23
43044101
24
Adequate
field
trial
data
are
available.

­
Corn,
pop,
stover
1,
fodder
No
None
There
are
currently
no
registered
uses
on
popcorn.

­
Corn,
sweet,
forage
and
stover
1,
forage
1,
fodder
Yes
00018171
00018206
00018375
00018382
00018450
45444101
25
Crop
field
trial
data
from
three
additional
trial
sites
must
be
submitted
to
fulfill
geographic
representation
requirements.
Because
the
data
submitter
(Griffin)
had
deleted
uses
on
sweet
corn
from
product
labels,
a
use
on
sweet
corn
must
be
proposed
prior
to
acceptance
of
the
field
trial
data.
Table
3
(continued).

OPPTS
Guideline
No.
Guideline
Description
/
Commodity
§180.184
Tolerances
(ppm)
1
Must
Additional
Data
Be
Submitted?
MRID
Nos.
2
Comments
29
(continued)
­
Sorghum,
forage
and
stover
1,
forage
1,
fodder
Yes
00018171
00018148
40537601
No
data
have
been
submitted
in
response
to
the
Update.
Data
pertaining
to
residues
in/
on
sorghum
forage
and
fodder
following
a
single
postemergence
application
of
a
50%
DF
or
4
lb/
gal
FlC
formulation
at
the
maximum
registered
rate
remain
outstanding.

­
Wheat,
forage,
hay,
and
straw
0.5,
forage
0.5,
hay
0.5,
straw
Yes
00018171
40537601
42605901
26
Adequate
field
trial
data
are
available
for
wheat
straw,
which
indicate
that
the
established
tolerance
is
too
low;
however
these
data
reflect
application
at
>1x.
Field
residue
data
remain
outstanding
for
wheat
forage
and
wheat
hay;
the
registrants
may
also
wish
to
generate
field
trial
data
for
wheat
straw.

Miscellaneous
Commodities
­
Asparagus
7.0
No
00018087
00018089
00163267
18
40210901
19
41452601
20
Adequate
field
trial
data
are
available.

­
Cotton,
seed
and
gin
byproducts
0.25,
seed
Yes
00018067
41569901
20
45302201
27
Additional
data
and/
or
information
is
required
to
fulfill
geographic
representation
requirements.

860.1520
Processed
Food/
Feed
­
Corn,
field
None
No
42560001
28
Adequate
processing
data
are
available.

­
Cotton,
seed
None
No
45302201
27
Adequate
processing
data
are
available.

­
Potato
None
Yes
40049201
29
42397201
30
Additional
information
pertaining
to
sample
storage,
the
processing
protocol,
and
LOQ
determination,
as
well
as
an
explanation
for
low
method
recoveries
from
potato
chips,
are
required
to
upgrade
the
submitted
potato
processing
study.

­
Sorghum,
grain
None
No
42542102
7
Adequate
processing
data
are
available.
Table
3
(continued).

OPPTS
Guideline
No.
Guideline
Description
/
Commodity
§180.184
Tolerances
(ppm)
1
Must
Additional
Data
Be
Submitted?
MRID
Nos.
2
Comments
30
1.
All
tolerances
are
established
under
§180.184(
a)
unless
otherwise
specified.

2.
Bolded
references
were
reviewed
in
the
6/
90
Update.
Unbolded
references
were
reviewed
in
the
6/
82
Registration
Standard.
Otherwise,
MRIDs
were
reviewed
as
noted.

3.
A
review
of
the
above
EP
labels
and
the
supporting
residue
data
indicate
that
the
following
label
amendments
are
required:

°
The
product
labels
include
directions
for
use
for
a
number
of
tank
mixes.
In
many
cases,
the
tank
mix
products
are
no
longer
registered
for
use
on
the
subject
crop.
The
following
tank
mix
recommendations
must
be
removed
from
all
relevant
product
labels:
chloramben
­
Soybean
None
No
00018206
41241202
31
42462901
32
Adequate
processing
data
are
available.

­
Wheat
None
No
The
requirement
for
a
wheat
processing
study
has
been
waived.

860.1560
Reduction
of
Residues
NA
Yes
41241201
31
42397201
30
42379901
33
Additional
information
on
sample
storage,
the
cooking
protocol,
and
the
determination
of
LOQs
is
required
to
upgrade
the
potato
cooking
study.
Additional
information
on
the
determination
of
limits
of
quantitation
and
an
adequate
description
of
the
cooking
procedure
are
required
to
upgrade
the
carrot
cooking
study.

860.1850
Confined
Accumulation
in
Rotational
Crops
NA
No
40104101
40730101
An
adequate
confined
rotational
crop
study
is
available.

860.1900
Field
Accumulation
in
Rotational
Crops
None
Yes
None
The
requirements
for
field
rotational
crop
studies
have
been
waived
based
on
the
results
of
the
confined
rotational
crop
study.
The
registrants
must
modify
all
rotational
crop
restrictions
such
that
specific
plantback
intervals
are
defined
(e.
g.,
"do
not
plant
any
crop
within
4
months
of
application
to
treated
sorghum").
In
addition,
the
registrants
must
provide
justification
for
any
plantback
intervals
on
the
product
labels.
Table
3
(continued).

31
on
any
crop
(no
currently
registered
chloramben
products);
dinoseb
on
any
crop
(no
currently
registered
dinoseb
products);
oryzalin
on
soybeans;
and
propachlor
on
soybeans.
Also,
the
product
labels
for
the
50%
DF
formulations
(1812­
320
and
19713­
251)
include
tank
mix
recommendations
for
Bronco®,
a
product
which
was
cancelled
3/
9/
00.
Inappropriate
tank
mix
recommendations
are
highlighted
in
Table
2.

°
The
following
grazing/
feeding
restriction
are
considered
to
be
impractical
by
HED
and
must
be
removed
from
the
appropriate
product
labels:
restrictions
against
the
grazing
or
feeding
of
treated
sorghum
forage
or
silage
to
dairy
animals
(EPA
Reg.
Nos.
1812­
320,
19713­
97,
19713­
251,
and
51036­
78);
restrictions
against
the
feeding
of
cotton
gin
trash
to
livestock
(EPA
Reg.
Nos.
1812­
245,
19713­
251,
and
51036­
78
as
well
as
SLN
Nos.
AL000002,
AR0000007,
AR000008,
LA000013,
LA000015,
MS000001,
MS000011,
TN000005,
TN000006,
and
TX000012);
and
restrictions
against
the
grazing/
feeding
of
immature
wheat
plants
to
livestock
(EPA
Reg.
Nos.
1812­
245,
19713­
97,
and
51036­
78).

°
The
following
crops/
use
directions
require
preharvest
intervals
(PHIs)
to
be
specified:
postemergence
uses
on
sorghum
(EPA
Reg.
Nos.
1812­
245,
1812­
320,
19713­
97,
19713­
251,
and
51036­
78);
application
to
newly
planted
or
direct­
seeded
asparagus
(EPA
Reg.
Nos.
1812­
245,
1812­
320,
19713­
97,
19713­
251
and
SLN
No.
ID970004);
postemergence
application
to
carrots
grown
in
NY
(EPA
Reg.
Nos.
1812­
245
and
1812­
320);
postemergence
application
to
field
corn
(EPA
Reg.
Nos.
1812­
245,
19713­
97,
19713­
251,
and
51036­
78);
posttransplant
application
to
celery
(EPA
Reg.
No.
1812­
245,
1812­
320,
19713­
97,
19713­
251,
and
51036­
78);
and
postemergence
application
to
cotton
(EPA
Reg.
Nos.
1812­
245,
19713­
251,
and
51036­
78
as
well
as
SLN
Nos.
AL000002,
AR0000007,
AR000008,
LA000013,
LA000015,
MS000001,
MS000011,
TN000005,
TN000006,
and
TX000012).

°
Products
labels
which
contain
use
directions
for
asparagus
must
be
modified
to
make
it
clear
that
the
maximum
combined
application
rate
is
4.0
lb
ai/
A/
season
when
more
than
one
type
of
application
(preemergence,
postemergence,
or
application
at
the
fern
stage)
is
made.
In
addition,
the
available
crop
field
trial
data
for
asparagus
are
sufficient
to
support
application
of
linuron
to
asparagus
in
all
areas
of
the
U.
S.
Therefore,
the
registrants
may
wish
to
modify
product
labels
to
remove
the
restrictions
limiting
use
on
asparagus
to
certain
states.

°
The
product
label
for
EPA
Reg.
No.
1812­
245
includes
two
tables
of
application
rates
at
the
end
of
the
soybean
use
directions
which
are
titled
"Soybeans:
Broadcast
Application
­
Linex
4L
and
Sencor
DF
and
Lasso"
and
"Soybeans:
Broadcast
Application
­
Linex
4L
and
Sencor
DF
and
Duel
8E."
The
label
should
be
modified
to
clarify
application
timing
for
these
tables;
it
is
not
clear
to
which
application
type
(preemergence
or
postemergence)
these
application
rates
pertain.

4.
CBRS
No.
2838,
12/
24/
87,
L.
Propst.

5.
DP
Barcode
D160079,
4/
25/
91,
R.
Perfetti.

6.
DP
Barcode
D167107,
5/
21/
92,
P.
Deschamp.

7.
DP
Barcode
D187993,
11/
18/
93,
D.
McNeilly.

8.
DP
Barcode
D187998,
11/
18/
93,
D.
McNeilly.
Table
3
(continued).

32
9.
DP
Barcode
D188002,
11/
18/
93,
D.
McNeilly.

10.
DP
Barcode
D204807,
7/
27/
94,
D.
Miller.

11.
CBRS
No.
1244,
8/
12/
85,
J.
Garbus.

12.
DP
Barcode
D195090,
10/
5/
93,
D.
McNeilly.

13.
DP
Barcode
D198861,
3/
29/
94,
D.
McNeilly.

14.
DP
Barcode
D199375,
3/
16/
94,
D.
McNeilly.

15.
DP
Barcodes
D203624
and
D207488,
1/
11/
95,
S.
Hummel.

16.
DP
Barcode
D206666,
9/
23/
94,
D.
Miller.

17.
DP
Barcodes
D216614
and
D216621,
10/
13/
95,
W.
Cutchin.

18.
CB
No.
1317,
10/
29/
86,
J.
Garbus.

19.
CB
No.
2333,
6/
2/
87,
J.
Garbus.

20.
CB
Nos.
6663
and
6994,
3/
26/
91,
R.
Perfetti.

21.
CB
No.
5658,
10/
5/
89,
F.
Griffith.

22.
DP
Barcode
D198859,
3/
16/
94,
D.
McNeilly.

23.
DP
Barcode
D196857,
12/
15/
93,
D.
McNeilly.

24.
DP
Barcode
D198851,
3/
31/
94,
D.
McNeilly.

25.
DP
Barcode
D276294,
9/
21/
01,
J.
Punzi.

26.
DP
Barcode
D188028,
5/
10/
93,
D.
McNeilly.

27.
DP
Barcode
D271950,
9/
24/
01,
J.
Punzi.

28.
DP
Barcode
D188001,
7/
13/
93,
D.
McNeilly.

29.
CBRS
No.
2279,
6/
2/
87,
J.
Garbus.

30.
DP
Barcode
D181454,
9/
2/
92,
S.
Knizner.

31.
CBRS
No.
5858,
10/
31/
89,
C.
Olinger.

32.
DP
Barcode
D182595,
3/
18/
93,
D.
McNeilly.

33.
DP
Barcode
D181455,
9/
8/
92,
S.
Knizner.
33
D.
RESIDUE
CHARACTERIZATION
General
Discussion
on
Residue
Chemistry
of
Linuron
1.
Nature
of
the
Residue
in
Plants
The
qualitative
nature
of
the
residue
in
plants
is
adequately
understood
(D.
McNeilly,
11/
17/
93).
Metabolism
studies
with
corn,
soybeans,
and
potatoes
indicate
that
linuron
is
absorbed
from
the
soil
and
translocated
(i.
e.,
systemic).
The
metabolic
pathway
involves
demethylation
to
3­(
3,4­
dichlorophenyl)­
1­
methoxyurea
(desmethyl
linuron)
which
is
further
metabolized
to
3,4­
dichloroaniline
(3,4­
DCA);
metabolism
may
also
occur
through
demethoxylation
of
linuron.

The
residues
of
concern
in
plants
are
linuron
and
its
metabolites
convertible
to
3,4­
DCA;
the
chemical
structures
of
linuron
and
its
metabolites
identified
in
plant
and
animal
metabolism
studies
are
presented
in
Figure
1.

Corn
(MRID
40084801):
Corn
samples
(forage,
fodder,
silage,
and
dry
ear
corn)
were
harvested
0­
116
days
following
a
single
over­
the­
top
application
of
uniformly
ring­
labeled
[phenyl­
14
C]
linuron
at
1.4
lb
ai/
A
(-1x
the
maximum
registered
postemergence
application
rate)
when
corn
plants
were
15­
18
inches
tall.
The
TRR,
expressed
as
[
14
C]
linuron
equivalents,
were:
(i)
66.10
ppm
in
corn
forage
harvested
0
days
posttreatment
and
2.05
ppm
in
corn
forage
harvested
31
days
posttreatment;
(ii)
0.34­
0.37
ppm
in
silage
harvested
89
days
posttreatment;
and
(iii)
0.01­
0.014
ppm
in
corn
grain,
0.844­
1.09
ppm
in
corn
fodder,
and
0.049­
0.31
ppm
in
cobs
&
husks
harvested
98­
116
days
posttreatment.
The
parent
linuron
was
found
at
7.5­
91.7%
of
TRR
(0.15­
60.6
ppm)
in
forage,
4.8%
of
TRR
(0.016
ppm)
in
silage,
4.7%
of
TRR
(0.051
ppm)
in
fodder,
and
5.2%
of
TRR
(0.002
ppm)
in
cobs
&
husks.
Other
residues
identified
in
corn
matrices
were
desmethyl
linuron
at
0.5­
10.9%
of
TRR
(0.001­
0.80
ppm),
desmethoxy
linuron
at
<1­
3.5%
TRR
(<
0.001­
0.76
ppm),
DCPU
at
0.5­
6.9%
of
TRR
(0.002­
0.30
ppm),
and
3,4­
DCA
at
<0.05­<
1%
of
TRR
(<
0.001­<
0.04
ppm).
Polar
unknowns
accounting
for
0.8­
40.0%
of
TRR
(0.089­
1.82
ppm)
in
forage,
silage,
fodder,
and
cobs
&
husks
were
observed.
Additional
studies
were
conducted
in
order
to
generate
more
samples
for
isolation
of
larger
amounts
of
polar
metabolites
for
characterization.
Based
on
the
analysis
of
samples
using
the
enforcement
analytical
method,
it
was
concluded
that
unidentified
polar
components
in
plants
are
hydrolyzed
to
3,4­
DCA.

Potato
(MRID
42542101):
Immature
potato
plant
samples
were
harvested
24,
31,
51,
72,
and
111
days,
and
mature
potato
plants
were
harvested
115
days
following
a
single
preemergence
(after
planting)
application
of
uniformly
ring­
labeled
[phenyl­
14
C]
linuron
at
2.0
lb
ai/
A
(1x
the
maximum
registered
seasonal
application
rate).
Plants
harvested
<72
days
after
treatment
were
analyzed
as
whole
plants,
and
plants
harvested
at
72,
77,
111,
and
115
days
after
treatment
were
separated
into
foliage
and
tubers
for
analysis.
The
TRR,
expressed
as
[
14
C]
linuron
equivalents,
were:
(i)
0.24­
0.34
ppm
in
whole
plants
harvested
24­
51
days
posttreatment;
(ii)
0.22­
0.26
ppm
in
foliage
and
0.01­
0.02
ppm
in
tubers
harvested
72­
111
days
posttreatment;
(iii)
0.67
ppm
in
foliage,
0.03
ppm
in
unpeeled
34
tubers,
0.02
ppm
in
peeled
tubers,
and
0.09
ppm
in
peelings
harvested
(at
maturity)
115
days
posttreatment.
The
parent
linuron
was
found
at
30.7­
56.7%
of
TRR
(0.14­
0.21
ppm)
in
potato
foliage
at
24­
115
days
postreatment.
Other
residues
identified
in
potato
foliage
were
desmethyl
linuron
at
1.7­
4.7%
of
TRR
(<
0.01­
0.02
ppm;
24­
and
31­
day
posttreatment
samples
only),
desmethoxy
linuron
at
5.8­
13.1%
(0.02­
0.09
ppm),
and
norlinuron
(DCPU)
at
1.9­
8.1%
TRR
(<
0.01­
0.05
ppm).
Polar
unknowns
accounting
for
2.4­
33.2%
of
TRR
(<
0.01­
0.11
ppm)
in
potato
foliage
were
observed.
Even
though
the
specific
identity
of
the
polar
metabolites
was
unknown,
enforcement
method
analyses
indicated
that
they
were
all
converted
to
3,4­
DCA
under
the
alkaline
conditions
of
the
enforcement
method.

Soybean
(MRID
42548401:
Mature
soybean
plants
were
harvested
87
days
following
a
single
postemergence
directed
spray
application
(to
the
lower
three
inches
of
the
soybean
stem)
of
uniformly
ring­
labeled
[phenyl­
14
C]
linuron
at
1.0
lb
ai/
A
(1x
the
maximum
registered
postemergence
application
rate).
The
TRR,
expressed
as
[
14
C]
linuron
equivalents,
were
75.2%
of
TRR
(3.76
ppm)
in
foliage,
16.2%
of
TRR
(0.81
ppm)
in
pods,
and
8.6%
of
TRR
(0.43
ppm)
in
soybeans
harvested
(at
maturity)
87
days
posttreatment.
The
parent
linuron
was
found
at
3.4%
of
TRR
(0.2
ppm)
in
soybean
foliage,
1.0%
of
TRR
(<
0.01
ppm)
in
soybean
pods,
and
was
nondetectable
in
soybeans.
Other
residues
identified
were:
(i)
desmethyl
linuron
at
0.3%
of
TRR
(0.02
ppm),
desmethoxy
linuron
at
6.1%
of
TRR(
0.26
ppm),
and
norlinuron
at
12.6%
of
TRR
(0.54
ppm)
in
soybean
foliage;
(ii)
desmethoxy
linuron
at
5.7%
of
TRR
(0.05
ppm)
and
norlinuron
at
11.1%
of
TRR
(0.10
ppm)
in
soybean
pods;
and
(iii)
desmethoxy
linuron
at
31.3%
of
TRR
(0.1
ppm)
and
norlinuron
at
8.4%
of
TRR
(0.04
ppm)
in
soybeans.
Polar
unknowns
accounting
for
57.2%
of
TRR
(2.48
ppm)
in
soybean
foliage,
52.6%
of
TRR
(0.47
ppm)
in
soybean
pods,
and
49.2%
of
TRR
(0.22
ppm)
in
soybeans
were
also
observed.
Even
though
the
specific
identity
of
the
polar
metabolites
was
unknown,
the
metabolites
appeared
to
be
quantitatively
converted
to
3,4­
DCA
under
the
alkaline
conditions
of
the
enforcement
method.
35
N
H
Cl
Cl
O
N
O
CH
3
CH
3
N
H
N
H
O
Cl
Cl
CH
3
N
H
NH
2
O
Cl
Cl
N
H
Cl
Cl
O
N
H
O
CH
3
N
H
Cl
Cl
O
NH
2
OH
NH
2
Cl
Cl
Figure
1.
Chemical
names
and
structures
of
linuron
and
its
metabolites
identified
in
plant
and
animal
commodities.

Linuron:
3­(
3,4­
dichlorophenyl)­
1­
methoxy­
1­
methylurea
DCPMU;
IN­
15654;
Desmethoxy
linuron:
3­(
3,4­
dichlorophenyl)­
1­
methylurea
DCPU;
Norlinuron;
IN­
R915:
3,4­
dichlorophenylurea
Desmethyl
linuron:
3­(
3,4­
dichlorophenyl)­
1­
methoxyurea
Hydroxy­
norlinuron:
(4,5­
dichloro­
2­
hydroxyphenyl)
urea
3,4­
DCA:
3,4­
dichloroaniline
2.
Nature
of
the
Residue
in
Livestock
The
qualitative
nature
of
the
residue
in
ruminants
and
poultry
is
adequately
understood
(D.
McNeilly,
11/
17/
93).
An
acceptable
metabolism
study
with
goats
indicates
that
linuron
is
rapidly
metabolized
by
demethylation,
demethoxylation,
and
hydroxylation
and
is
primarily
eliminated
by
excretion.
The
metabolism
of
linuron
in
poultry
has
been
found
to
be
consistent
with
metabolism
in
goats.
The
terminal
residues
of
concern
are
the
parent
and
its
metabolites
which
are
convertible
to
3,4­
DCA.

Ruminants
(MRID
00029932):
Lactating
goats
were
dosed
with
uniformly
ring­
labeled
14
C]
linuron
at
1
and
5
ppm
(0.14x
and
0.7x,
respectively,
the
maximum
dietary
burden
of
7.22
ppm
for
dairy
cattle)
for
5
consecutive
days.
During
the
feeding
period,
~85­
86%
of
the
radioactivity
was
rapidly
eliminated
from
the
body.
The
TRR
in
milk,
expressed
as
linuron
equivalents,
were
0.004­
0.005
ppm
for
the
1­
ppm
dose
group
and
0.014­
0.027
ppm
from
the
5­
ppm
dose
group.
For
the
1­
ppm
dose
group,
TRR
were
0.070
ppm
in
liver,
0.029
ppm,
in
kidney,
and
0.001
ppm
in
muscle
and
fat.
For
the
5­
ppm
dose
group,
TRR
were
0.358
ppm
in
liver,
0.150
ppm
in
kidney,
0.015
ppm
in
fat,
and
0.014
ppm
in
muscle.
No
intact
linuron
(<
0.001
ppm)
was
detected
in
the
milk,
tissues,
or
urine
of
the
test
animals.
About
95%
of
the
radioactivity
in
milk
was
identified
as
polar
metabolites
based
on
polar
solvents
used
in
TLC
procedure.
No
attempts
were
made
to
identify
these
polar
metabolites
in
the
study.

Poultry
(MRIDs
42635401
and
43245101):
Laying
hens
were
dosed
with
uniformly
ring­
labeled
[phenyl­
14
C]
linuron
at
10
ppm
(~
45x
the
maximum
dietary
burden
of
0.22
ppm)
for
5
consecutive
36
days.
At
sacrifice,
the
highest
levels
of
radioactivity
in
poultry
tissues
and
eggs
were
observed
in
liver
(0.57­
1.13
ppm;
mean
of
0.78
ppm)
and
kidney
(0.44­
0.75
ppm;
mean
of
0.60
ppm).
Residues
were
0.1­
0.17
ppm
(mean
of
0.13
ppm)
in
fat
and
0.05­
0.12
ppm
in
muscle
(mean
of
0.09
ppm
for
thigh
muscle
and
0.07
ppm
for
breast
muscle),
while
residues
in
whole
eggs
ranged
from
0.02
ppm
(Day
1)
to
0.12
ppm
(Day
5).
Linuron
was
observed
only
in
egg
yolk
and
fat
as
a
minor
component
of
the
residue
profile
(<
1.3­
2.8%
TRR,
<0.01­
0.01
ppm).
Norlinuron
was
the
primary
metabolite
found
in
poultry
tissues
and
eggs
which
comprised
65­
68.5%
of
TRR
(0.05
ppm)
in
muscle,
40.8%
of
TRR
(0.04
ppm)
in
fat,
65.2%
of
TRR
(0.38
ppm)
in
liver,
41.6%
of
TRR
(0.17
ppm)
in
kidney,
51.9­
64.7%
of
TRR
(0.01­
0.19
ppm)
in
egg
yolk
and
12.0­
15.5%
of
TRR
(<
0.01
ppm)
in
egg
white.
Desmethyl
linuron,
DCPMU,
and
hydroxy­
norlinuron
were
also
detected
at
low
levels
(#0.05
ppm).
3,4­
DCA
was
detected
at
very
low
levels
in
poultry
tissues;
<0.01
ppm
for
kidney,
muscle,
fat,
egg
white,
and
egg
yolk
and
0.01
ppm
in
liver.

The
HED
Metabolism
Committee
concluded
(D.
McNeilly,
11/
17/
93)
that
linuron
can
be
regulated
using
the
enforcement
method.
Residues
of
concern
are
linuron
and
metabolites
convertible
to
3,4­
DCA,
expressed
as
linuron.
3,4­
DCA,
per
se,
need
not
be
regulated
separately.

3.
Residue
Analytical
Methods
The
reregistration
requirements
for
residue
analytical
methods
are
not
fulfilled.
The
registrants
must
propose
the
current
data
collection
method,
a
GC/
ECD
method,
as
an
enforcement
method
for
plant
and
animal
commodities
to
replace
the
current
colorimetric
enforcement
method,
which
is
outdated.

The
Pesticide
Analytical
Manual
(PAM)
Vol.
II
lists
a
colorimetric
method
(Method
I,
Bleidner
et
al.)
and
a
paper
chromatographic
method
(Method
II)
for
the
enforcement
of
tolerances
for
linuron
residues.
Residues
of
diuron
may
interfere
in
Method
I.
A
modified
version
of
Method
I
(H.
L.
Pease,
Journal
of
Agric.
and
Food
Chem.,
1962,
Vol.
10,
p.
279),
which
includes
a
cellulose
column
step
to
separate
linuron
from
diuron,
has
been
used
for
tolerance
enforcement
purposes.
Both
these
methods
determine
linuron
and
all
metabolites
hydrolyzable
to
3,4­
DCA
and
have
limits
of
detection
of
0.05
ppm.
A
GLC/
ECD
method
for
linuron
residues
in/
on
asparagus
from
the
CA
Department
of
Food
and
Agriculture
has
been
validated
by
the
Agency
and
sent
to
FDA
to
be
published
in
PAM
Vol.
II
as
Method
III.
This
method
determines
residues
of
linuron
per
se
and
the
limit
of
detection
is
0.05
ppm.
We
note
however
that
this
method
is
inadequate
for
tolerance
enforcement
since
it
does
not
determine
all
the
residues
of
concern.
In
addition,
this
method
uses
benzene
as
the
extraction
solvent.

Residue
data
for
linuron
for
plant
and
animal
commodities
were
collected
using
Method
I
(or
modifications
thereof)
or
a
GC/
ECD
method
similar
to
Method
I.

The
GC/
ECD
data
collection
method
involves
conversion
of
residues
to
3,4­
DCA
and
therefore
will
detect
residues
of
linuron
and
its
metabolites,
or
any
compound
that
can
be
hydrolyzed
to
3,4­
DCA
(such
as
diuron).
The
method
involves
hydrolysis
of
samples
by
alkaline
reflux
to
convert
residues
to
3,4­
DCA,
distillation
into
concentrated
acid,
neutralization,
and
clean
up
by
silica
gel
column
37
chromatography.
The
eluates
are
then
analyzed
by
GC/
ECD.
The
LOQ
is
0.01
ppm.
We
note
that
this
method
is
the
same
method
used
for
data
collection
purposes
for
residues
of
diuron
in/
on
plant
and
animal
commodities.

As
discussed
above,
samples
from
the
plant
and
animal
metabolism
studies
were
analyzed
using
the
extraction
procedures
of
the
enforcement
methods,
which
demonstrated
that
the
identified
metabolites
plus
a
large
portion
of
the
unidentified
polar
metabolites
were
converted
to
3,4­
DCA
and
would
therefore
be
determined
using
the
enforcement
method.

4.
Multiresidue
Method
Testing
The
FDA
PESTDATA
database
dated
10/
99
(PAM
Vol.
I,
Appendix
II)
contains
data
concerning
the
applicability
of
multiresidue
methods
D
and
E
(fatty
and
nonfatty
foods)
for
recovery
of
linuron
and
its
metabolites
desmethyl
linuron,
DCPMU,
DCPU,
and
3,4­
DCA.
Linuron
recovery
using
Multiresidue
Methods
Sections
302
(Luke
Method;
Protocol
D),
303
(Mills,
Onley,
and
Gaither;
Protocol
E,
nonfatty),
and
304
(Mills,
fatty
food)
is
variable
(but
$40%).
There
is
a
small
recovery
(<
50%)
of
3,4­
DCA
using
Section
303,
and
variable
recovery
using
Section
302;
no
data
are
available
for
Section
304.
Linuron
metabolites
desmethyl
linuron,
DCPMU,
and
DCPU
are
not
recovered
using
Sections
303
and
304.
Linuron
metabolite
desmethyl
linuron
is
recovered
using
Section
302,
but
no
quantitative
information
is
available.
No
recovery
data
are
available
for
Section
302
for
linuron
metabolites
DCPMU
and
DCPU.

5.
Storage
Stability
Data
The
reregistration
requirements
for
storage
stability
are
not
fulfilled.
The
final
reports
for
ongoing
storage
stability
studies
on
cotton
gin
byproducts,
cotton
processed
commodities
(up
to
3
months),
and
sweet
corn
commodities
(up
to
6
months)
must
be
submitted.
In
addition,
information
pertaining
to
sample
storage
intervals
and
conditions
for
samples
used
for
tolerance
reassessment
must
be
submitted.
This
information
is
needed
for
parsnips
(field
trial
data
in
MRID
00018171)
and
for
the
animal
feeding
studies
(MRIDs
00018209,
00018210,
00018375,
00018383,
00018450,
and
00018775).

The
available
storage
stability
data
indicate
that
linuron
residues
of
concern
are
stable
during
frozen
storage
at
­20
C
in
asparagus
(fresh
and
cooked)
for
at
least
24
months,
carrots
(fresh
and
cooked)
for
at
least
21
months,
potatoes
for
at
least
18
months,
celery
for
at
least
18
months,
corn
grain
for
at
least
12
months,
sorghum
grain
for
at
least
12
months,
corn
oil
for
at
least
12
months,
sorghum
starch
for
at
least
12
months,
potato
wet
peel
for
at
least
18
months,
potato
dry
peel
for
at
least
18
months,
mashed
potatoes
for
at
least
18
months,
potato
chips
for
at
least
20
months,
dehydrated
potato
granules
for
at
least
20
months,
soybean
oil
for
at
least
18
months,
and
soybean
tofu
for
at
least
18
months.
38
The
available
storage
stability
data
will
support
field
trial
data
on
leafy
vegetables,
oilseeds/
nuts,
and
root
crops
stored
for
2
years
at
­18
C
and
on
grain
crops
stored
for
1
year
at
­18
C.
Available
storage
stability
data
on
processed
commodities
will
support
processing
studies
on
grains,
oilseeds,
and
root
crops
where
samples
were
stored
at
­18
C
up
to
12
months
and
18
months
for
soybean
oil
and
tofu
studies,
and
18­
20
months
for
potato
processed
commodities.

HED
concludes
that
additional
storage
stability
data
(beyond
those
already
promised
to
HED)
will
not
be
necessary
provided
that
storage
intervals
do
not
exceed
one
year
for
non­
oily
grains
and
two
years
for
oilseeds/
nuts,
leafy
vegetables,
and
root
crops:
the
registrant
has
provided
sufficient
data
to
indicate
that
significant
linuron
residue
declines
are
not
expected
to
occur
in
oilseeds/
nuts,
leafy
vegetables,
root
vegetables,
and
non­
oily
grains
over
short
to
intermediate
storage
intervals.
Since
residues
have
been
shown
to
be
stable
in
several
matrices
of
several
different
crop
groupings,
no
additional
storage
data
other
than
studies
currently
in
progress
discussed
above
will
be
required,
provided
that
linuron
is
not
registered
for
use
on
fruits,
fruiting
vegetables,
or
citrus.

Storage
stability
data
for
soybean
seeds
and
sugar
beet
tops
were
submitted
previously
(MRID
00159802).
Additional
raw
data
were
required
to
support
these
data
before
HED
could
conclude
that
the
data
were
adequate
(CB
No.
1244,
8/
12/
85,
J.
Garbus);
these
data
have
not
been
submitted.
Although
not
supported
by
raw
data,
the
study
indicated
that
residues
of
linuron
were
stable
during
up
to
two
years
of
frozen
storage
in/
on
soybeans
and
sugar
beet
tops.

We
note
that
the
available
storage
stability
studies
reflect
fortification
of
samples
with
linuron
per
se;
storage
stability
data
for
the
metabolites
were
not
submitted.
Because
the
methods
used
for
analysis
were
the
methods
which
convert
residues
to
3,4­
DCA
and
because
any
degradation
product
of
linuron
or
its
metabolites
would
likely
be
a
compound
hydrolyzable
to
3,4­
DCA,
HED
concludes
that
storage
stability
data
for
linuron
metabolites
will
not
be
required.

There
is
no
indication
in
HED
files
that
storage
stability
data
for
livestock
commodities
have
been
submitted.
As
stated
above,
information
pertaining
to
the
storage
conditions
and
intervals
of
samples
used
for
tolerance
reassessment
must
be
submitted.
If
samples
from
the
animal
feeding
studies
were
stored
for
longer
than
one
month
prior
to
analysis,
supporting
storage
stability
data
will
be
required.

6.
Magnitude
of
the
Residue
in
Crop
Plants
The
reregistration
requirements
for
magnitude
of
the
residue
in
plants
are
fulfilled
for
asparagus,
carrots;
field
corn
grain;
field
corn
forage
and
fodder;
cottonseed;
parsley;
parsnips;
potatoes;
sorghum
grain;
sorghum
aspirated
grain
fractions;
soybeans;
soybean
forage
and
hay;
soybean
aspirated
grain
fractions;
and
wheat
grain.
Adequate
field
trial
data
depicting
linuron
residues
of
concern
following
applications
made
according
to
the
maximum
registered
use
patterns
have
been
submitted
for
these
commodities.
Geographical
representation
is
adequate,
and
a
sufficient
number
of
trials
reflecting
representative
formulation
classes
were
conducted.
39
The
reregistration
requirements
for
magnitude
of
the
residue
in
plants
are
not
fulfilled
for:
celery;
corn,
field,
aspirated
grain
fractions;
corn,
sweet
(K+
CWHR);
corn,
sweet,
forage;
corn,
sweet,
stover;
cotton
gin
byproducts;
sorghum
forage
and
stover;
wheat
forage,
hay,
and
straw.
Additional
crop
field
trial
data
and/
or
information
is
required
for
these
commodities.
Brief
summaries
of
available
linuron
residue
data,
useful
for
tolerance
reassessment
only,
along
with
the
status
of
requirements
for
RACs
eligible
for
reregistration,
are
presented
below.

Root
and
Tuber
Vegetables
Group
Carrot:
The
2/
94
RED
concluded
that
Griffin
and
Drexel
must
submit
additional
residue
data
for
carrots.
However,
the
2/
95
RED
Addendum
concluded
that,
provided
label
amendments
are
made
to
reflect
a
14­
day
PHI,
no
additional
field
trial
data
would
be
required
for
carrots.
Data
reported
in
MRID
41503401
indicate
that
the
linuron
residues
of
concern
will
not
exceed
the
established
tolerance
of
1.0
ppm
in/
on
carrots
harvested
14
days
following
a
preemergence
application
at
0.5
lb
ai/
A
plus
a
postemergence
application
at
1­
1.5
lb
ai/
A
using
a
50%
DF
or
4
lb/
gal
FlC
formulation.
Tests
conducted
in
FL
and
NJ
received
a
total
of
1.5
lb
ai/
A
(0.75x
the
maximum
seasonal
rate),
and
tests
conducted
in
CA
and
WI
each
received
a
total
of
2.0
lb
ai/
A
(1x
the
maximum
seasonal
rate).
Linuron
residues
of
concern
were
0.08­
0.45
ppm
in/
on
six
samples
treated
at
1x
and
0.37­
0.56
ppm
in/
on
four
samples
treated
at
0.75x.
Samples
were
stored
frozen
for
368­
648
days
prior
to
analysis,
which
is
within
the
2­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
root
crops.

Data
from
additional
carrot
field
trials
(MRID
40537601)
indicate
that
residues
ranged
from
0.28­
0.50
ppm
and
0.30­
0.60
ppm
in/
on
samples
of
washed
and
unwashed
carrots,
respectively,
harvested
14
days
following
either
a
single
postemergence
application
of
a
50%
WP
or
50%
DF
formulation
at
2.0
lb
ai/
A
(1x
the
maximum
seasonal
application
rate)
or
two
applications
for
a
total
rate
of
2.0
or
4.0
lb
ai/
A
(1x
or
2x
the
maximum
seasonal
application
rate).
Samples
were
stored
frozen
for
125­
127
days
prior
to
analysis.

Currently,
the
Griffin
labels
(EPA
Reg.
Nos.
1812­
245
and
1812­
320)
for
the
4
lb/
gal
FlC
and
50%
DF
formulations
do
not
specify
a
PHI
for
postemergence
application
to
carrots
in
NY.
The
registrant
must
modify
the
product
labels
to
reflect
a
14­
day
PHI
for
carrots.

Parsnip:
No
additional
residue
data
for
parsnips
are
required.
Previously,
data
had
been
required
comparing
the
use
of
a
DF
formulation
with
that
of
an
FlC
formulation
on
parsnips.
These
requirements
have
been
waived,
based
on
residue
data
for
field
trials
conducted
on
asparagus,
carrots,
celery,
corn,
cotton,
potatoes,
sorghum,
soybeans,
and
wheat,
which
indicated
similar
residue
patterns
regardless
of
formulation.

Data
reviewed
in
the
6/
82
Reregistration
Standard
(MRID
00018171)
indicate
that
the
linuron
residues
of
concern
will
not
exceed
the
established
tolerance
of
0.5
ppm
in/
on
parsnips
harvested
155,
169,
and
182
days
following
a
single
application
of
the
50%
WP
at
1.0
or
2.0
lb
ai/
A
(0.7x
or
1.3x
the
maximum
seasonal
rate).
Linuron
residues
of
concern
were
nondetectable
(<
0.05
ppm).
There
is
no
40
storage
stability
information
available
for
these
samples;
these
data
are
required
(see
Storage
Stability
Data).

Potato:
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
no
additional
field
trial
data
are
required
for
potato.
Data
reported
in
MRID
41452701
indicate
that
the
linuron
residues
of
concern
will
not
exceed
the
established
tolerance
of
1.0
ppm
in/
on
potatoes
harvested
42­
110
days
following
a
single
preemergence
application
of
the
4
lb/
gal
FlC
formulation
at
2.0
lb
ai/
A
(1x
the
maximum
seasonal
rate).
Linuron
residues
of
concern
were
nondetectable
(<
0.01
ppm)
in/
on
five
samples
of
potato
tubers.
Samples
were
stored
frozen
for
279­
593
days,
which
is
within
the
2­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
root
crops.

Data
from
additional
potato
field
trials
(MRID
00163267)
indicate
that
residues
were
nondetectable
(<
0.05
ppm)
in/
on
all
but
one
sample
(0.07
ppm)
of
potato
harvested
125
to
155
days
after
planting.
A
single
preeemergence
or
postemergence
application
of
the
WP
or
DF
formulation
was
made
at
1.0­
4.0
lb
ai/
A
(0.5­
2x
the
maximum
seasonal
application
rate)
using
ground
equipment.

No
additional
field
trial
data
are
required
for
potatoes.

Leafy
Vegetables
Group
Celery:
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
no
additional
field
trial
data
are
required
for
celery
grown
east
of
the
Rocky
Mountains.
This
conclusion
was
based
on
field
residue
data
(MRID
41501501)
indicating
that
linuron
residues
of
concern
were
0.04­
0.42
ppm
in/
on
six
celery
samples
harvested
68­
102
days
following
a
single
posttransplant
application
of
the
4
lb/
gal
FlC
or
50%
DF
formulation
at
1.5
lb
ai/
A
(1x
the
maximum
seasonal
rate)
in
tests
performed
in
FL,
MI,
and
NY
(east
of
the
Rocky
Mountains).
Data
from
additional
celery
field
trials
(MRID
40537601)
indicate
that
linuron
residues
of
concern
were
nondetectable
(<
0.05
ppm)
to
0.32
ppm
in/
on
celery
(washed/
unwashed
and
trimmed
/untrimmed)
harvested
44­
82
days
following
postemergence
application
of
either
the
4
lb/
gal
FlC,
50%
WP,
or
50%
DF
formulation
at
(i)
0.5­
1.5
lb
ai/
A
(0.33­
1x
the
maximum
single
application
rate)
and
(ii)
two
or
four
applications
at
consecutive
intervals
of
22,
13,
and
19
days
for
a
total
seasonal
rate
of
1.5
or
3.0
lb
ai/
A
(1
or
2x
the
maximum
registered
seasonal
rate)
in
tests
performed
in
CA,
FL,
and
MI.
Samples
were
stored
frozen
for
74­
343
days
prior
to
analysis,
which
is
within
the
2­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
leafy
vegetable
crops.

Currently,
the
Griffin
labels
for
the
4
lb/
gal
FlC
and
50%
DF
(EPA
Reg.
Nos.
1812­
245
and
1812­
320)
formulation
permit
use
on
celery
in
all
states
including
CA.
Griffin
Corporation
submitted
Interregional
Research
Project
No.
4
(IR­
4)
residue
data
(MRID
43681401)
in
support
of
a
request
for
amended
use
of
the
4
lb/
gal
FlC
and
50%
DF
formulations
(EPA
Reg.
Nos.
1812­
245
and
1812­
320)
on
celery
grown
west
of
the
Rocky
Mountains.
Linuron
residues
of
concern
were
0.04­
0.12
ppm
in/
on
celery
grown
in
CA
or
OR
and
harvested
66
or
77
days
following
posttransplant
application
at
1.5
lb
ai/
A
(1x
the
maximum
seasonal
rate
for
all
states
except
CA;
1.5x
the
maximum
seasonal
rate
41
for
CA).
Samples
were
stored
frozen
for
up
to
390
days
prior
to
analysis.
HED
concluded
that
the
geographic
representation
of
the
submitted
studies
was
not
adequate
to
represent
the
celery
growing
regions
requested
by
the
amended
use
petition;
two
additional
field
trials
in
Region
10
are
required
to
fulfill
the
residue
data
requirements
for
celery
grown
west
of
the
Rocky
Mountains.
HED
concluded
that
the
data
were
not
sufficient
to
support
the
request
to
add
uses
west
of
the
Rockies,
however
it
was
concluded
that
a
conditional
registration
would
be
recommended
while
the
data
were
generated.

Parsley:
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
no
additional
field
trial
data
are
required
for
the
regional
registration
for
parsley
grown
in
all
states
east
of
the
Mississippi
River.
Data
reported
in
MRID
41189801
indicate
that
the
linuron
residues
of
concern
will
not
exceed
the
established
tolerance
of
0.25
ppm
in/
on
parsley
grown
in
OH
or
NJ
and
harvested:
(i)
52­
90
days
following
a
single
preemergence
application
of
the
4
lb/
gal
FlC
formulation
at
either
1.5
lb
ai/
A
(1x
the
maximum
seasonal
rate)
or
3.0
lb
ai/
A
(2x
the
maximum
seasonal
rate)
and
(ii)
24
days
following
a
preemergence
application
at
1.5
lb
ai/
A
plus
a
postemergence
application
at
0.5
lb
ai/
A
(1.3x
the
maximum
seasonal
application
rate).
Linuron
residues
of
concern
from
the
single
preemergence
application
at
1x
were
<0.06­
0.11
ppm
in/
on
14
samples
of
parsley.
Linuron
residues
of
concern
from
the
single
preemergence
application
at
2x
were
0.14­
0.21
ppm
in/
on
four
samples
of
parsley.
Linuron
residues
of
concern
from
the
single
preemergence
plus
postemergence
application
at
1.3x
were
0.09­
0.18
ppm
in/
on
parsley.
Storage
stability
information
for
these
studies
was
not
discussed
in
the
study
review.

Legume
Vegetables
Group
Soybean
seed
and
aspirated
grain
fractions:
The
2/
94
RED
concluded
that
Griffin
and
Drexel
must
submit
additional
residue
data
for
soybean
because
Craven
data
were
submitted
to
support
reregistration
of
linuron
on
soybeans.
Craven
replacement
data
reflecting
postemergence
application
of
the
50%
DF
or
4
lb/
gal
FlC
formulation
at
the
maximum
registered
rate
were
submitted
and
deemed
acceptable
(DP
Barcode
D198859,
3/
16/
94,
D.
McNeilly).
The
2/
95
RED
Addendum
concluded
that
no
additional
soybean
data
were
required.
Data
reported
in
MRID
43039101
indicate
that
the
linuron
residues
of
concern
will
not
exceed
the
established
tolerance
of
1
ppm
in/
on
soybeans
harvested
56­
77
days
following
either
(i)
a
single
preemergence
application
of
the
DF
formulation
at
2.5
lb
ai/
A
followed
by
a
single
directed
postemergence
application
at
1.0
lb
ai/
A
for
a
total
rate
of
3.5
lb
ai/
A
(-1x
the
maximum
seasonal
rate)
or
(ii)
a
single
preemergence
application
of
the
DF
formulation
at
2.5
lb
ai/
A
(0.8x
the
maximum
seasonal
rate).
Linuron
residues
of
concern
from
the
single
preemergence
plus
single
directed
postemergence
application
at
-1x
were
<0.01­
1.0
ppm
in/
on
15
samples
of
soybeans.
Linuron
residues
of
concern
from
the
single
preemergence
application
at
0.8x
were
<0.01­
0.18
ppm
in/
on
17
samples
of
soybeans.
Samples
were
stored
frozen
up
to
8.5
months
prior
to
analysis,
which
is
within
the
2­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
oilseeds.
42
There
are
no
data
available
for
soybean
aspirated
grain
fractions.
Because
processing
data
for
soybeans
indicated
no
concentration
of
residues
of
concern
in
light
impurities,
data
for
soybean
aspirated
grain
fractions
will
not
be
required.

Foliage
of
Legume
Vegetables
Group
Soybean
forage
and
hay:
The
2/
94
RED
concluded
that
because
restrictions
against
the
feeding
of
treated
soybean
forage
and
hay
existed
on
all
pertinent
product
labels,
no
data
would
be
required
for
soybean
forage
and
hay,
and
that
the
established
tolerances
for
soybean
forage
and
hay
should
be
revoked.
However,
the
2/
95
RED
Addendum
concluded
that
these
restrictions
were
no
longer
considered
practical
and
required
tolerances
and
supporting
residue
data.
The
Agency
has
since
amended
its
policy
on
label
restrictions
on
feeding
of
soybean
forage
and
hay
and
now
allows
these
label
restrictions
on
soybean
forage
and
hay.
Residue
data
and
tolerances
for
soybean
forage
and
hay
will
not
be
required,
provided
all
pertinent
labels
are
amended
to
include
the
following
feeding
restriction
on
the
product
labels:
"The
feeding
of
treated
forage
or
hay
to
livestock
is
prohibited."

Cereal
Grain
Group
Barley,
oats,
and
rye
grain:
There
are
no
longer
registered
uses
of
linuron
on
barley,
oats,
and
rye.
Applicable
tolerances
have
been
revoked
since
the
2/
95
RED
Addendum.

Corn,
field,
grain
and
aspirated
grain
fractions:
The
2/
94
RED
concluded
that
Griffin
and
Drexel
must
submit
additional
residue
data
for
corn
because
Craven
data
were
submitted
to
support
reregistration
of
linuron
on
field
corn.
Craven
replacement
data
(MRID
42948501)
reflecting
two
different
treatments,
differing
only
in
the
timing
of
postemergence
application
were
submitted
and
deemed
acceptable
(DP
Barcode
D198851,
3/
28/
94,
D.
McNeilly).
The
2/
95
RED
Addendum
concluded
that
no
additional
field
corn
grain
data
were
required,
but
that
field
corn
aspirated
grain
fractions
data
were
required.
Data
indicate
that
the
linuron
residues
of
concern
will
not
exceed
the
established
tolerance
of
0.25
ppm
in/
on
field
corn
grain
harvested
57­
65
days
following
a
single
preemergence
application
of
the
DF
formulation
at
1.5
lb
ai/
A
followed
by
a
single
postemergence
application
at
1.5
lb
ai/
A
for
a
total
rate
of
3.0
lb
ai/
A
(1x
the
maximum
seasonal
rate).
Linuron
residues
of
concern
from
the
single
preemergence
plus
single
directed
postemergence
application
were
<0.01­
0.018
ppm
in/
on
nine
samples
of
field
corn
grain.
Storage
stability
information
for
these
samples
was
not
discussed
in
the
study
review.

Data
from
an
additional
field
corn
grain
field
trial
(MRID
40537601)
indicate
that
linuron
residues
were
nondetectable
(<
0.05
ppm)
to
0.06
ppm
in/
on
two
samples
of
field
corn
grain
harvested
98
and
116
days
following
a
single
postemergence
application
of
the
4
lb/
gal
FlC
formulation
at
1.5
lb
ai/
A
(1x
the
maximum
postemergence
application
rate).
Samples
were
stored
frozen
for
up
to
110
days
prior
to
analysis,
which
is
within
the
1­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
grain
crops.
43
Data
from
an
additional
field
corn
grain
field
trial
(MRID
00163267)
indicate
that
linuron
residues
were
nondetectable
(<
0.05
ppm)
in/
on
31
samples
of
field
corn
grain
harvested
128­
150
days
after
planting
following
a
single
preemergence
application
of
the
DF
formulation
at
0.5­
1.5
lb
ai/
A
(0.3­
1x
the
maximum
preemergence
application
rate).
Storage
stability
information
for
these
samples
was
submitted
but
was
not
discussed
in
the
study
review.

Corn
field
trial
data
(MRIDs
00018171,
00018206,
00018375,
00018382,
and
00018450)
reviewed
in
the
6/
82
Reregistration
Standard
indicate
that
linuron
residues
were:
(i)
nondetectable
(<
0.05
ppm)
in/
on
corn
grain
harvested
56­
65
days
following
a
single
postemergence
application
of
the
WP
formulation
at
0.75­
6.0
lb
ai/
A;
and
(ii)
nondetectable
(<
0.05
ppm)
in/
on
corn
grain
harvested
116­
125
days
following
a
single
preemergence
application
of
the
WP
formulation
at
1.5
lb
ai/
A.
Note:
No
distinction
was
made
in
the
Science
Chapter
about
the
type
of
corn
(field
or
sweet)
that
was
treated.
No
storage
stability
information
is
available
for
these
samples.

There
are
no
data
available
for
field
corn
aspirated
grain
fractions.
This
data
requirement
cannot
be
waived
because
the
corn
grain
processing
study
indicated
concentration
of
linuron
residues
of
concern
in
light
impurities.
Aspirated
grain
fractions
data
remain
outstanding.

Corn,
pop,
grain:
There
are
no
registered
uses
of
linuron
on
popcorn.
The
applicable
tolerance
for
popcorn
should
be
revoked.

Corn,
sweet
(K+
CWHR):
Additional
data
were
required
for
sweet
corn
(K+
CWHR)
in
the
6/
90
Update.
The
2/
94
RED
and
the
2/
95
RED
Addendum
reiterated
this
data
requirement.
Crop
field
trial
data
for
sweet
corn
were
submitted
by
Griffin;
these
data
are
inadequate
to
fulfill
reregistration
requirements
because
of
incomplete
geographic
representation.
An
additional
three
crop
field
trials
must
be
conducted
in
Regions
1
(1
trial)
and
5
(2
trials).
In
addition,
because
Griffin
had
deleted
uses
on
sweet
corn
from
product
labels,
a
use
on
sweet
corn
must
be
proposed.
Although
inadequate,
the
field
trial
data
indicate
that
linuron
residues
of
concern
were
below
the
LOQ
(<
0.01
ppm)
to
0.048
ppm
in/
on
sweet
corn
K+
CWHR
harvested
at
maturity
following
a
single
soil
directed
application
of
the
50%
DF
or
4
lb/
gal
FlC
formulation
at
1.48­
1.57
lb
ai/
A
made
when
sweet
corn
plants
were
at
least
15
inches
tall.
Samples
were
stored
frozen
for
up
to
6
months
prior
to
analysis;
a
supporting
storage
stability
study
is
ongoing.

Sorghum,
grain
and
aspirated
grain
fractions:
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
no
additional
field
trial
data
are
required
for
sorghum
grain.
Data
reported
in
MRID
40537601
indicate
that
the
linuron
residues
of
concern
were
nondetectable
(<
0.05
ppm)
in/
on
six
samples
of
sorghum
grain
harvested
137­
154
days
following
a
single
preplant
application
of
the
50%
DF
at
0.5­
0.63
lb
ai/
A
(0.3­
0.4x
the
maximum
preemergence
application
rate).
Data
reported
in
MRID
41377601
indicate
that
the
linuron
residues
of
concern
were
<0.01­
0.16
ppm
in/
on
eight
samples
of
sorghum
grain
harvested
69­
98
days
following
a
single
preemergence
application
of
the
4
lb/
gal
FlC
formulation
at
1.5
lb
ai/
A
(1x
the
maximum
preemergence
application
rate)
followed
by
a
single
postemergence
application
of
the
50%
DF
formulation
at
1.0
lb
ai/
A
(1x
the
maximum
postemergence
44
application
rate).
Samples
were
stored
frozen
up
to
364
days
prior
to
analysis,
which
is
within
the
1­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
grain
crops.

Data
reviewed
in
the
6/
82
Reregistration
Standard
indicate
that
linuron
residues
of
concern
were
<0.05­
0.27
ppm
in/
on
sorghum
grain
harvested
72­
111
days
following
a
single
postemergence
application
of
a
50%
WP
formulation
at
1.0
lb
ai/
A
(1x
the
maximum
registered
postemergence
application
rate);
tolerance­
exceeding
residues
(0.27
ppm)
were
observed
at
the
72­
and
74­
day
harvest
intervals.
No
information
pertaining
to
sample
storage
conditions
and
intervals
is
available
for
this
study.
The
registrants
are
required
to
specify
a
preharvest
interval
for
postemergence
use
on
sorghum
(see
Directions
for
Use).
If
a
PHI
greater
than
74
days
is
specified,
then
no
increase
in
the
sorghum
grain
tolerance
will
be
required.

No
data
were
submitted
for
sorghum
aspirated
grain
fractions,
however,
the
Agency
recommended
that
a
waiver
be
granted
for
residue
data
on
sorghum
aspirated
grain
fractions
because
residues
did
not
concentrate
in
sorghum
processed
commodities
flour
or
starch.

Wheat,
grain
and
aspirated
grain
fractions:
There
are
three
linuron
EPs
(EPA
Reg.
Nos.
1812­
245,
19713­
97,
and
51036­
78)
currently
registered
for
use
on
winter
wheat
(drill
planted)
in
ID,
OR,
and
WA.
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
no
additional
field
trial
data
are
required
for
wheat
grain.
Data
reported
in
MRID
42605901
indicate
that
the
linuron
residues
of
concern
were
nondetectable
(<
0.03
ppm)
in/
on
two
samples
of
wheat
grain
harvested
128
days
following
a
single
postemergence
application
of
the
DF
formulation
at
2.5
or
5.0
lb
ai/
A
(1.4x
or
2.9x
the
maximum
seasonal
rate
for
areas
west
of
the
Cascade
Range
and
3.3x
or
6.7x
the
maximum
seasonal
rate
for
areas
east
of
the
Cascade
Range).
No
data
are
available
for
the
current
maximum
rates
of
1.75
lb
ai/
A,
for
west
of
the
Cascade
Range,
and
0.75
lb
ai/
A,
for
east
of
the
Cascade
Range.
Samples
were
stored
frozen
for
up
to
5
months
prior
to
analysis,
which
is
within
the
1­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
grain
crops.

There
are
no
crop
field
trial
data
available
for
wheat
aspirated
grain
fractions,
however,
no
residue
data
for
aspirated
grain
fractions
of
wheat
are
required
because
linuron
is
registered
for
use
on
wheat
during
the
early
vegetative
stage
(preemergence,
early
postemergence
or
semi­
dormant)
and/
or
before
the
reproduction
stage
begins
and
seed
heads
are
formed.
In
addition,
the
requirements
for
a
wheat
processing
study
were
waived
because
the
magnitude
of
the
residue
study
performed
to
obtain
wheat
grain
for
processing
employed
a
6.7x
treatment
rate
and
nondetectable
residues
(<
0.03
ppm)
were
observed
(DP
Barcode
D185892,
1/
15/
93,
R.
Perfetti).

Prior
to
cancellation
of
their
linuron
products,
Dupont
proposed
canceling
the
use
on
wheat
in
the
U.
S.,
but
maintaining
the
tolerances
for
wheat
commodities
to
support
imported
commodities,
primarily
from
Canada.
HED
reviewed
this
request
and
concluded
that
additional
data/
information
pertaining
to
use
patterns,
export
quantities,
and
the
residue
data
used
to
support
the
import
tolerances
would
be
required
before
the
Agency
could
recommend
for
any
import
tolerances
(DP
Barcode
D227293,
1/
7/
97,
C.
Olinger).
45
Forage,
Fodder,
and
Straw
of
Cereal
Grains
Group
Barley,
oats,
and
rye
(forage,
hay,
and
straw):
There
are
no
longer
registered
uses
of
linuron
on
barley,
oats,
and
rye.
Applicable
tolerances
have
been
revoked
since
the
2/
95
RED
Addendum.

Corn,
field,
forage
and
stover:
The
2/
94
RED
concluded
that
additional
residue
data
for
field
corn
forage
and
fodder
must
be
submitted
because
Craven
data
were
submitted
to
support
reregistration
of
linuron
on
field
corn.
Craven
replacement
data
(MRIDs
42948501
and
43044101)
reflecting
two
different
treatments,
differing
only
in
the
timing
of
postemergence
application
were
submitted
and
deemed
acceptable
(D196857,
12/
15/
93,
D.
McNeilly
and
DP
Barcode
D198851,
3/
28/
94,
D.
McNeilly,
respectively).
The
2/
95
RED
Addendum
concluded
that
no
additional
field
trial
data
were
required
for
field
corn
forage
and
fodder.
Field
corn
forage
data
indicate
that
the
linuron
residues
of
concern
will
not
exceed
the
established
tolerance
of
1.0
ppm
in/
on
field
corn
forage
harvested
58­
73
days
following
a
single
preemergence
application
of
the
DF
formulation
at
1.5
lb
ai/
A
followed
by
a
single
directed
postemergence
application
at
1.5
lb
ai/
A
for
a
total
rate
of
3.0
lb
ai/
A.
Linuron
residues
of
concern
from
the
single
preemergence
plus
single
directed
postemergence
application
were
0.023­
0.54
ppm
in/
on
nine
samples
of
field
corn
forage.
Field
corn
fodder
data
indicate
that
the
linuron
residues
of
concern
will
exceed
the
established
tolerance
of
1.0
ppm
in/
on
field
corn
fodder
(stover)
harvested
57­
65
days
following
a
single
preemergence
application
of
the
DF
formulation
at
1.5
lb
ai/
A
followed
by
a
single
directed
postemergence
application
at
1.5
lb
ai/
A
for
a
total
rate
of
3.0
lb
ai/
A.
Linuron
residues
of
concern
from
the
single
preemergence
plus
single
directed
postemergence
application
were
0.1­
5.5
ppm
in/
on
nine
samples
of
field
corn
fodder.
The
data
for
corn
fodder
(stover)
showed
five
of
nine
samples
had
tolerance­
exceeding
residues
(>
1
ppm).
Storage
stability
information
for
these
samples
was
not
discussed
in
the
study
review.

Data
from
additional
field
corn
forage
and
fodder
field
trials
(MRID
40537601)
indicate
that
linuron
residues
will
not
exceed
the
established
tolerance
in/
on
field
corn
forage
and
fodder.
Linuron
residues
of
concern
were
as
follows:
(i)
0.37­
0.87
ppm
in/
on
three
forage,
silage,
and
whole
plant
samples
harvested
98­
116
days
following
a
single
postemergence
application
of
the
4
lb/
gal
FlC
formulation
at
1.5
lb
ai/
A
(1x
the
maximum
postemergence
application
rate);
(ii)
0.065
and
0.11
ppm
in/
on
two
forage
samples
harvested
47
days
following
a
single
preemergence
application
of
the
4
lb/
gal
FlC
formulation
at
0.75
and
1.5
lb
ai/
A
(0.5x
and
1x
the
maximum
preemergence
application
rate)
one
day
after
planting;
and
(iii)
<0.05­
0.1
ppm
in/
on
six
forage
samples
harvested
70
days
following
a
single
preemergence
application
of
the
50%
DF
formulation
at
0.5­
1.65
lb
ai/
A
(0.4­
1x
the
maximum
preemergence
application
rate).
Samples
were
stored
frozen
for
92­
638
days
prior
to
analysis,
which
is
within
the
2­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
leafy
vegetable
crops.

Data
from
an
additional
field
corn
grain
field
trial
(MRID
00163267)
indicate
that
linuron
residues
were
nondetectable
(<
0.05
ppm)
in/
on
31
samples
of
field
corn
fodder
harvested
128­
150
days
after
planting
following
a
single
preemergence
application
of
the
DF
formulation
at
0.5­
1.5
lb
ai/
A
(0.3­
1x
the
maximum
preemergence
application
rate).
Storage
stability
information
for
these
samples
was
not
discussed
in
the
study
review.
46
Corn,
pop,
stover:
There
are
no
registered
uses
of
linuron
on
popcorn.

Corn,
sweet,
forage
and
stover:
The
2/
94
RED
and
the
2/
95
RED
Addendum
required
additional
data
for
sweet
corn
forage,
but
concluded
that
sweet
corn
fodder
(stover)
was
no
longer
considered
a
significant
livestock
feed
item.
However,
Table
1
has
been
updated,
and
HED
now
requires
field
trial
data
for
sweet
corn
stover.
Crop
field
trial
data
for
sweet
corn
commodities
were
submitted
by
Griffin;
these
data
are
inadequate
to
fulfill
reregistration
requirements
because
of
incomplete
geographic
representation.
An
additional
three
crop
field
trials
must
be
conducted
in
Regions
1
(1
trial)
and
5
(2
trials).
In
addition,
because
Griffin
had
deleted
uses
on
sweet
corn
from
product
labels,
a
use
on
sweet
corn
must
be
proposed.
Although
inadequate,
the
field
trial
data
indicate
that
linuron
residues
of
concern
were
below
the
LOQ
(<
0.01
ppm)
to
2.44
ppm
in/
on
sweet
corn
forage
and
0.0189
to
4.00
ppm
in/
on
sweet
corn
stover
harvested
at
maturity
following
a
single
soil
directed
application
of
the
50%
DF
or
4
lb/
gal
FlC
formulation
at
1.48­
1.57
lb
ai/
A
made
when
sweet
corn
plants
were
at
least
15
inches
tall.
Samples
were
stored
frozen
for
up
to
7
months
prior
to
analysis;
a
supporting
storage
stability
study
is
ongoing.

Sorghum,
forage
and
stover:
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
no
data
for
sorghum
forage
and
fodder
(stover)
have
been
submitted
in
response
to
the
Update.
Data
pertaining
to
residues
in/
on
sorghum
forage
and
fodder
(stover)
following
a
single
postemergence
application
of
the
50%
DF
or
4
lb/
gal
FlC
formulation
at
the
maximum
registered
rate
remain
outstanding.

Wheat,
forage,
hay,
and
straw:
At
the
request
of
the
Agency,
Dupont
previously
submitted
a
petition
(PP#
4F4293)
to
increase
linuron
tolerances
on
wheat
straw
(CBTS
No.
13020,
DP
Barcode
D197620,
3/
9/
94,
D.
McNeilly).
No
data
were
submitted
or
are
available
for
wheat
forage
and
hay.
These
data
are
required.
Restrictions
against
the
feeding
of
wheat
forage
are
not
considered
practical,
and
the
Agency
now
requires
field
trial
data
for
wheat
hay.

There
are
three
linuron
EPs
(EPA
Reg.
Nos.
1812­
245,
19713­
97,
and
51036­
78)
currently
registered
for
use
on
winter
wheat
(drill
planted)
in
ID,
OR,
and
WA.
The
2/
95
RED
Addendum
concluded
that
no
additional
field
trial
data
are
required
for
wheat
straw.
Data
reported
in
MRID
42605901
indicate
that
the
linuron
residues
of
concern
exceeded
the
established
tolerance
of
0.5
ppm
in/
on
wheat
straw,
grown
in
OR,
harvested
128
days
following
a
single
postemergence
application
of
the
DF
formulation
at
2.5
lb
ai/
A
(1.4x
the
maximum
seasonal
rate
for
areas
west
of
the
Cascade
Range,
and
3.3x
the
maximum
seasonal
rate
for
areas
east
of
the
Cascade
Range).
Linuron
residues
of
concern
from
the
single
postemergence
application
were
0.64
and
2.0
ppm
in/
on
two
samples
of
wheat
straw
following
application
at
a
slightly
exaggerated
rate
(1.4x).
No
data
are
available
for
the
current
maximum
rates
of
1.75
lb
ai/
A,
for
west
of
the
Cascade
Range,
and
0.75
lb
ai/
A,
for
east
of
the
Cascade
Range.
Samples
were
stored
frozen
for
up
to
5
months
prior
to
analysis.
These
data
indicate
that
a
higher
tolerance
is
needed;
a
2­
ppm
tolerance
is
recommended,
as
proposed
in
PP#
4F4293
(CB
No.
16149,
DP
Barcode
D218971,
10/
3/
95,
S.
Hummel).
Alternatively
to
proposing
a
higher
tolerance,
the
registrants
may
wish
to
conduct
wheat
straw
field
trials,
in
conjunction
with
the
required
47
wheat
forage
and
hay
field
trials,
which
reflect
application
to
winter
wheat
at
the
current
maximum
registered
rates.

Miscellaneous
Commodities
Asparagus:
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
additional
data
for
asparagus
reflecting
application
of
the
4
lb/
gal
FlC
formulation
at
the
maximum
registered
rate
were
required;
these
data
were
required
to
be
submitted
by
linuron
registrants
other
than
Dupont.
In
addition,
it
was
concluded
that
a
higher
tolerance
for
asparagus
must
be
proposed.

Residue
data
(MRID
41452601)
previously
evaluated
(CB
Nos.
6663
and
6994,
3/
26/
91,
R.
Perfetti)
were
reevaluated
in
conjunction
with
the
petition
request
(PP#
5E04464;
DP
Barcode
D211335,
5/
9/
95,
W.
Cutchin)
by
IR­
4
to
increase
the
tolerance
for
asparagus
from
3
ppm
to
7
ppm.
These
data
indicate
that
linuron
residues
of
concern
were
0.4­
5.0
ppm
in/
on
asparagus
harvested
1
or
2
days
following
four
applications
(one
at
preemergence,
a
second
at
early
emergence,
followed
by
two
postemergence
applications)
at
1.0
lb
ai/
A/
application
for
a
total
rate
of
4.0
lb
ai/
A
(1x
the
maximum
seasonal
rate).
If
the
maximum
residue
of
5.0
ppm
is
corrected
for
method
recovery
(74%)
the
maximum
residue
would
be
6.8
ppm.
Samples
were
stored
frozen
for
532­
634
days
prior
to
analysis,
which
is
within
the
2­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
leafy
vegetable
crops..
These
data
are
adequate
to
satisfy
data
requirements
for
asparagus;
the
tolerance
for
asparagus
has
been
increased
to
7
ppm.

Cotton,
seed
and
gin
byproducts:
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
no
additional
data
were
required
for
cotton
because
a
Federal
Register
Notice
(3/
4/
92)
was
issued
cancelling
use
of
Dupont
products
on
cotton.
Subsequently,
Griffin
Corporation
submitted
cotton
field
trial
data
(MRID
45302201)
in
support
of
reregistration.
The
submitted
cotton
field
trial
data,
in
conjunction
with
field
trial
data
reviewed
previously
in
the
6/
82
Reregistration
Standard
and
Agency
memorandum
(CB
Nos.
6663
and
6994,
3/
26/
91,
R.
Perfetti),
are
adequate
to
satisfy
data
requirements
for
cottonseed
but
are
inadequate
to
satisfy
data
requirements
for
cotton
gin
byproducts.
For
the
gin
byproducts
field
trials,
information
describing
the
type
of
equipment
used
for
harvesting
in
the
machine­
harvest
trials
must
be
submitted.
In
addition,
additional
cotton
gin
byproducts
field
trials
must
be
conducted,
such
that
the
requirements
of
GLN
860.1000
(Table
1)
for
gin
byproducts
field
trials
are
fulfilled,
or
a
justification
for
the
substitution
of
data
from
field
trials
reflecting
hand
harvesting
must
be
submitted.

Field
trial
data
(MRID
41569901)
indicate
that
linuron
residues
of
concern
were
nondetectable
(<
0.05
ppm)
in/
on
cottonseed
harvested
76­
107
days
following
a
single
postemergence
broadcast
application
with
the
4
lb/
gal
FlC
and
50%
DF
formulation
to
20­
inch
tall
cotton
plants
at
1.5
lb
ai/
A
(1x
the
48
maximum
registered
rate).
Samples
were
stored
frozen
for
524­
551
days
prior
to
analysis,
which
is
within
the
2­
year
interval
that
linuron
residues
have
been
shown
to
be
stable
in
oilseeds.

Although
inadequate,
the
submitted
gin
byproducts
field
trial
data
indicate
that
linuron
residues
of
concern
were
nondetectable
(<
0.01
ppm)
to
8.14
ppm
in/
on
cotton
gin
products
harvested
54­
104
days
following
application
of
either
the
50%
DF
or
4
lb/
gal
FlC
formulation
as
follows:
(i)
a
single
layby
application
at
1.48­
1.58
lb
ai/
A
(-1x
the
maximum
registered
seasonal
rate);
or
(ii)
two
split
applications
at
0.75
lb
ai/
A/
application,
for
a
total
application
rate
of
1.50­
1.53
lb
ai/
A
(-1x
the
maximum
registered
seasonal
rate).
Samples
were
stored
frozen
for
14­
66
days
prior
to
analysis;
a
supporting
storage
stability
study
is
ongoing.

7.
Magnitude
of
the
Residue
in
Processed
Food/
Feed
The
reregistration
requirements
for
the
magnitude
of
the
residue
in
processed
food/
feed
are
fulfilled
for
field
corn,
cotton,
soybeans,
and
wheat.
An
acceptable
cottonseed
processing
study
has
been
submitted
to
satisfy
the
requirements
identified
in
the
the
2/
94
RED
and
the
2/
95
RED
Addendum.
The
2/
94
RED
and
2/
95
RED
Addendum
also
concluded
that
additional
data
were
required
to
upgrade
an
existing
potato
processing
study
(S.
Knizner,
9/
2/
92);
these
data
remain
outstanding.

Outstanding
potato
processing
data
are
considered
confirmatory;
sufficient
data
are
available
to
reassess
tolerances
and
estimate
dietary
exposure
for
potato
processed
products.

A
summary
of
the
available
data
and
reregistration
status
for
each
commodity
is
presented
below.

Corn,
field:
The
2/
94
RED
and
the
2/
95
RED
Addendum
concluded
that
no
additional
data
were
required
for
the
processed
commodities
of
field
corn.
An
acceptable
field
corn
processing
study
has
been
submitted
(MRID
42560001;
DP
Barcode
D188001,
7/
13/
93,
D.
McNeilly).
The
data
indicate
that
linuron
residues
of
concern
do
not
concentrate
in
starch,
grits,
meal,
flour,
or
crude
or
refined
oil
(from
both
wet
and
dry
milling)
processed
from
field
corn
grain
bearing
trace
residues
following
treatment
at
5x.
No
tolerances
are
required
for
the
processed
commodities
of
field
corn.
Processing
factors
were
not
calculated
because
residues
in/
on
all
commodities
were
greater
than
or
equal
to
the
LOD
of
0.003
ppm
(except
starch
which
bore
nondetectable
residues)
but
below
the
LOQ
(<
0.01
ppm).
The
processing
data
also
indicated
that
linuron
residues
of
concern
in
light
impurities
and
large
screenings
were
approximately
3x
those
in
the
RAC.
Samples
were
stored
frozen
for
up
to
12
months
prior
to
analysis,
which
is
supported
by
12­
month
storage
stability
data
for
corn
grain,
corn
oil,
and
sorghum
starch.

Cotton:
Acceptable
residue
data
are
available
for
cotton
processed
commodities
(DP
Barcode
D271950,
9/
24/
01,
J.
Punzi).
No
concentration
of
linuron
residues
of
concern
was
observed
in
cotton
meal,
hulls,
and
refined
oil
processed
from
cottonseed
bearing
detectable
linuron
residues
of
concern.
No
tolerances
are
required
for
the
processed
commodities
of
cotton.
Samples
were
stored
frozen
for
up
to
2
months
prior
to
analysis;
a
supporting
storage
stability
study
is
ongoing.
49
Potato:
The
2/
94
RED
and
the
2/
95
RED
Addendum
required
additional
information
pertaining
to
sample
storage,
the
processing
protocol,
and
the
LOQ
determination,
as
well
as
an
explanation
for
low
method
recovery
from
potato
chips
to
upgrade
the
study
(DP
Barcode
D181454,
9/
2/
92,
S.
Knizner).
These
data
remain
outstanding.
Although
inadequate,
the
processing
data
indicate
that
linuron
residues
of
concern
concentrate
in
wet
peel
waste
(processing
factor
of
5.5x),
chips
(2.0x),
dehydrated
granules
(3.4x),
and
oven­
baked
potatoes
(2.1x)
but
do
not
concentrate
in
peeled
potato
(0.82x)
or
mashed
potato
(0.61x).
Samples
were
stored
frozen
for
up
to
20.5
months
prior
to
analysis,
which
is
supported
by
adequate
storage
stability
data
for
potatoes
and
its
processed
commodities
wet
peel,
dry
peel,
dehydrated
granules,
and
mashed
potatoes.

HED
had
previously
concluded
that
no
tolerances
for
potato
processed
commodities
would
be
required
(DP
Barcode
D218971,
10/
3/
95,
S.
Hummel).
The
highest
average
residue
of
linuron
found
in
field
trials
at
the
maximum
rate
(HAFT)
is
0.07
ppm.
[In
another
study
linuron
residues
of
concern
were
below
the
limit
of
quantitation
of
0.14
ppm
when
potatoes
were
treated
at
a
2x
rate.
A
HAFT
of
0.07
ppm
will
be
used
for
calculation
purposes.]
Using
the
processing
factor
of
3.4x
and
the
HAFT,
expected
residues
in
potato
granules
would
be
0.07
ppm
x
3.4
=
0.24
ppm.
Because
this
amount
does
not
significantly
exceed
the
reassessed
potato
tolerance
of
0.2
ppm,
no
food
additive
tolerance
is
needed
for
granules.
Because
the
processing
factor
for
chips
is
less
than
that
for
granules,
expected
residues
in
chips
would
be
less
than
those
in
granules.

For
processed
potato
waste,
the
same
HAFT
is
used.
Residues
were
found
to
concentrate
in
wet
peel
by
5.5x.
In
addition
to
wet
peel,
potato
processing
waste
may
contain
cull
potatoes
and
washing
water.
For
the
purposes
of
calculating
expected
residues,
it
was
assumed
that
the
dry
matter
content
of
wet
peels
is
the
same
as
the
dry
matter
content
of
potatoes
(20%).
Potato
processing
waste
has
a
dry
matter
content
of
12%.
The
expected
linuron
residues
of
concern
in
potato
processing
waste
will
be
no
more
than
0.07
ppm
x
5.5x
x
12%/
20%
=
0.23
ppm.
The
resulting
residue
does
not
significantly
exceed
the
tolerance
recommended
for
potatoes
of
0.2
ppm.
Thus,
no
tolerance
is
needed
for
linuron
residues
in
processed
potato
waste.

Sorghum,
grain:
HED
does
not
currently
require
data
for
the
processed
commodities
of
sorghum.
However,
sorghum
processing
data
(DP
Barcode
D187993,
11/
18/
93,
D.
McNeilly)
submitted
by
Dupont
indicate
that
linuron
residues
of
concern
do
not
concentrate
in
sorghum
flour
(processing
factor
of
<0.44x)
or
starch
(<
0.44x).

Soybean:
The
available
soybean
processing
data
(CBRS
No.
5858,
10/
31/
89,
C.
Olinger,
and
DP
Barcode
D182595,
3/
18/
93,
D.
McNeilly)
indicate
that
linuron
residues
of
concern
do
not
concentrate
significantly
in
hulls
(processing
factor
of
0.5x),
meal
(1.2x),
soapstock
(0.7x),
crude
oil
(0.2x),
refined
oil
(0.2x),
degummed
oil
(0.2x),
tofu
(0.3x),
light
impurities
(0.9x),
soybean
milk
(0.15x),
or
soybean
kernels
(0.9x).
Residues
were
found
to
concentrate
in
soybean
isolate
(1.6x)
and
lecithin
(2.3x).
Samples
were
stored
frozen
for
up
to
19
months
prior
to
analysis,
which
is
supported
by
adequate
storage
stability
data
for
soybean
oil
and
tofu
(18­
month
storage
interval).
The
Agency
does
not
50
currently
establish
tolerances
for
soybean
isolate
or
lecithin.
Tolerances
for
soybean
processed
commodities
are
not
required.

Wheat:
HED
granted
a
waiver
for
a
wheat
processing
study
for
linuron
(DP
Barcode
D185892,
1/
15/
93,
R.
Perfetti)
based
on
the
fact
that
linuron
residues
of
concern
were
below
the
LOQ
(<
0.03
ppm)
in/
on
wheat
grain
treated
at
an
exaggerated
rate
of
6.7x.
Note
the
"6.7x"
rate
is
actually
6.7x
the
maximum
rate
for
areas
east
of
the
Cascade
Range
but
only
2.9x
the
maximum
rate
for
areas
west
of
the
Cascade
Range
(and
2.9x
the
maximum
rate
currently
registered).

8.
Magnitude
of
the
Residue
in
Meat,
Milk,
Poultry,
and
Eggs
Reregistration
requirements
for
magnitude
of
the
residue
in
meat,
milk,
poultry,
and
eggs
are
fulfilled.
Feeding
study
data
are
available
depicting
linuron
residues
of
concern
in
animals.
There
are
established
tolerances
for
linuron
residues
of
concern
in
the
meat,
fat,
and
meat
byproducts
of
cattle,
goat,
hog,
horses,
and
sheep.
Tolerances
for
linuron
residues
of
concern
in
milk
and
poultry
commodities
have
not
been
established.

The
2/
94
RED
and
the
2/
95
RED
Addendum
reassessed
the
established
tolerances
for
meat,
fat,
and
meat
byproducts
of
cattle,
goats,
hogs,
horses,
and
sheep
at
lower
levels
and
concluded
that
no
tolerances
are
required
for
poultry
and
eggs.
Since
the
issuance
of
the
RED
and
RED
Addendum,
crop
field
trial
data
for
sweet
corn
forage
and
fodder
and
cotton
gin
byproducts
have
been
submitted.
Although
additional
field
trial
data
are
required
for
these
commodities,
the
available
data
indicate
that
the
estimated
cattle
dietary
burden
used
in
the
2/
95
RED
Addendum
(3.1
ppm
based
on
a
diet
of
50%
corn
grain
and
50%
corn
fodder)
is
too
low.

The
maximum
theoretical
dietary
burdens
of
linuron
to
beef
and
dairy
cattle,
poultry,
and
swine
are
presented
in
the
table
below.
We
note
that
these
dietary
burdens
are
estimated
because
additional
crop
field
trial
data
are
required
for
several
feed
items
(sweet
corn
forage
and
fodder,
cotton
gin
byproducts,
sorghum
forage
and
fodder,
and
wheat
forage,
hay,
and
straw).
51
Calculation
of
maximum
dietary
burdens
of
linuron
to
livestock
Feed
Commodity
%
Dry
Matter
1
%
Diet
1
Estimated
Residues
Levels
(ppm)
2
Dietary
Contribution
(ppm)
3
Beef
Cattle
Carrot,
culls
12
25
1.00
2.08
Corn,
sweet,
forage
48
40
3.00
4
2.50
Cotton,
gin
byproducts
90
20
9.00
4
2.00
Cottonseed,
meal
89
15
0.10
0.017
TOTAL
BURDEN
100
6.60
Dairy
Cattle
Carrot,
culls
12
25
1.00
2.08
Corn,
sweet,
forage
48
50
3.00
4
3.13
Cotton,
gin
byproducts
90
20
9.00
4
2.00
Cottonseed,
meal
89
5
0.10
0.006
TOTAL
BURDEN
100
7.22
Poultry
Cottonseed,
meal
NA
20
0.10
0.02
Sorghum,
grain
NA
80
0.25
0.20
TOTAL
BURDEN
100
0.22
Swine
Carrot,
culls
NA
10
1.0
0.10
Sorghum,
grain
NA
90
0.25
0.225
TOTAL
BURDEN
100
0.325
1
Table
1
(OPPTS
Guideline
860.1000).

2
Reassessed
tolerance
based
on
data
from
field
trials.
3
Contribution
=
[tolerance
/
%
DM
(if
cattle)]
X
%
diet).
Poultry
and
swine
diets
are
not
corrected
for
%
dry
matter.
4
Estimated
tolerance;
additional
crop
field
trial
data
are
required.

A
summary
of
the
available
livestock
feeding
studies
follows:

Ruminant:
Several
dairy
cattle
feeding
studies
were
discussed
in
the
6/
82
Reregistration
Standard.
The
results
of
these
studies
are
summarized
in
the
table
below.
Samples
were
analyzed
for
linuron
residues
of
concern
using
Method
I
of
PAM
Vol.
II.
The
LOQ
was
0.05
ppm
for
each
matrix.
52
Dosing
Summary
of
residues
from
cow
feeding
studies
Two
cows
at
an
average
of
0.15
ppm
(0.02x)
for
37
days
to
obtain
tissue
samples;
three
cows
at
same
level
to
obtain
milk
samples
No
detectable
residues
in
milk
or
tissues.
Milk
was
collected
every
three
days
during
dosing
(MRID
00018775).

Two
cows
fed
at
an
average
of
0.25
ppm
(0.03x)
for
37
days
Kidney
samples
bore
residues
of
0.06­
0.07
ppm.
No
residues
were
detected
in
any
other
tissue
(MRID
00018375).

One
cow
at
an
average
of
0.30
ppm
(0.04x)
for
30
days
to
obtain
tissue
samples;
another
cow
at
same
level
for
milk
samples
Detectable
residues
observed
in
liver
and
kidney
at
0.08
and
0.09
ppm,
respectively.
Residues
in
fat,
muscle,
and
milk
were
not
detectable.
Milk
was
collected
every
other
day
during
dosing
(MRID
00018450).

Two
cows
at
1.0
ppm
(0.14x)
for
30
days
Detectable
residues
observed
in
liver
and
kidney
at
0.36­
0.50
and
0.65­
0.67
ppm,
respectively.
Residues
in
milk,
lean
muscle,
and
subcutaneous
fat
were
not
detectable.
Milk
was
collected
every
other
day
during
dosing
(MRID
00018209).

Two
cows
at
50
ppm
(6.9x)
for
30
days
Residues
were
12.0
and
13.0
ppm
in
kidney,
11.0
and
13.0
in
liver,
0.45
and
0.48
ppm
in
lean
muscle,
and
0.48
and
1.10
ppm
in
subcutaneous
fat.
Milk
residues
were
0.05­
0.37
ppm,
with
the
highest
value
observed
on
Day
27
of
dosing;
milk
samples
were
collected
every
other
day
during
dosing
(MRID
00018210).

Using
the
results
from
the
feeding
study
at
50
ppm,
expected
residues
at
a
1x
feeding
level
would
be
1.9
ppm
in
liver
and
kidney,
0.07
ppm
in
muscle,
0.16
ppm
in
fat,
and
0.05
ppm
in
milk.
These
data
indicate
that
increased
tolerances
for
liver
and
kidney
are
necessary
but
that
the
established
tolerances
for
meat
and
fat
may
be
reduced.
A
tolerance
for
milk
must
be
proposed.

The
estimated
dietary
burden
in
swine
is
much
less
than
that
for
beef
and
dairy
cattle.
If
the
results
of
the
exaggerated
rate
cattle
feeding
study
are
used,
expected
levels
of
linuron
residues
of
concern
in
swine
commodities
would
be
0.08
ppm
in
liver
and
kidney,
0.007
ppm
in
fat,
and
0.003
ppm
in
muscle.
Therefore,
the
established
tolerances
for
hog
commodities
may
be
reduced.

Poultry:
Two
poultry
feeding
studies
were
discussed
in
the
6/
82
Reregistration
Standard.
Following
feeding
of
poultry
(broilers)
at
0.35
ppm
(1.6x)
or
1
ppm
(4.5x)
for
28
days,
no
detectable
residues
were
observed
in
liver,
skin,
muscle,
or
fat;
and
no
detectable
residue
were
observed
in
tissues
or
eggs
from
laying
hens
fed
0.7
ppm
linuron
(3.2x)
for
21
days
(MRID
00018383).
Samples
were
analyzed
using
Method
I
of
PAM,
Vol.
II
with
an
LOQ
of
0.05
ppm.
In
addition,
analysis
of
samples
from
the
poultry
metabolism
study,
in
which
hens
were
fed
at
10
ppm
(45x)
for
5
days,
using
the
enforcement
method
resulted
in
residues
of
0.23
ppm
in
egg
yolk,
<0.01
ppm
in
egg
white,
0.46
ppm
in
liver,
0.03
ppm
in
breast
and
thigh
muscle,
and
0.04
ppm
in
fat.
If
these
levels
are
adjusted
to
a
1x
feeding
level,
expected
residues
would
be
below
0.05
ppm.
Therefore,
no
linuron
tolerances
for
poultry
commodities
are
needed.
53
9.
Reduction
of
Residues
All
data
for
reduction
of
residues
have
been
evaluated
and
deemed
adequate
except
that
additional
information
is
required
to
upgrade
existing
potato
and
carrot
cooking
studies.

The
asparagus
cooking
study
shows
washing
with
water
reduces
residues
by
40%.
Boiling
removes
an
additional
25%
of
the
residues,
while
steaming
had
little
or
no
effect
on
reducing
residue
levels
in
or
on
asparagus
(D182590,
3/
18/
93,
D.
McNeilly).

A
carrot
cooking
study
indicated
that
linuron
residues
of
concern
concentrate
in
peels
(3.3x)
but
reduce
after
boiling
(0.3x)
or
steaming
(0.4x).
Additional
information
pertaining
to
how
the
carrots
were
cooked
and
how
the
LOQs
were
determined
is
required
to
upgrade
this
study
(D181455,
9/
8/
92,
S.
Knizner).

The
potato
cooking
study
shows
that
linuron
residues
concentrate
in
oven­
baked
potatoes
(1.5x)
and
microwave­
baked
potatoes
(1.6x),
but
are
reduced
in
boiled
potatoes
(0.48x).
Additional
information
pertaining
to
the
cooking
procedures,
LOQ
determination,
and
sample
handling/
storage
is
required
to
upgrade
this
study
(D181454,
9/
2/
92,
S.
Knizner).

10.
Confined
and
Field
Accumulation
in
Rotational
Crops
All
data
for
nature
of
the
residue
in
confined
rotational
crops
have
been
evaluated
and
deemed
adequate.
The
requirement
for
field
rotational
crop
studies
has
been
waived.

The
registrants
have
several
varying
plantback
intervals
established
on
product
labels
(see
Table
2).
Some
plantback
restrictions
are
too
general;
e.
g.,
"Do
not
follow
treated
sorghum
with
any
fall
crop,
nor
with
sugar
beets,
tobacco,
vegetables
or
potatoes
in
rotation."
In
addition,
some
of
the
plantback
intervals
are
conflicting.
For
example,
EPA
Reg.
Nos.
1812­
245
and
1812­
320
include
the
following
contradictory
plantback
restrictions
under
the
use
directions
for
sorghum:
"Do
not
follow
treated
sorghum
with
any
fall
crop,
nor
with
sugar
beets,
tobacco,
vegetables
or
potatoes
in
rotation.
Sorghum
or
field
corn
may
be
replanted
within
4
months;
after
4
months
any
crop
may
be
planted."

The
registrants
must
modify
all
rotational
crop
restrictions
such
that
specific
plantback
intervals
are
defined
(e.
g.,
do
not
plant
any
crop
within
4
months
of
application
to
treated
sorghum).
In
addition,
the
registrants
must
provide
justification
for
any
plantback
intervals
on
the
product
labels.
54
E.
TOLERANCE
REASSESSMENT
SUMMARY
1.
Tolerance
Reassessments
for
Linuron
Tolerances
for
residues
of
linuron
are
currently
expressed
in
terms
of
linuron
per
se.
Permanent
tolerances
are
established
for
linuron
residues
in/
on
several
raw
agricultural
commodities
and
animal
commodities
under
40
CFR
§180.184(
a).
A
tolerance
with
regional
restriction
has
been
established
for
linuron
residues
in/
on
parsley
under
40
CFR
§180.184(
c).
The
tolerance
expression
under
40
CFR
§180.184(
a)
and
(c)
should
be
revised
as
follows:
"Tolerances
are
established
for
the
combined
residues
of
the
herbicide
linuron
(3­(
3,4­
dichlorophenyl)­
1­
methoxy­
1­
methylurea)
and
its
metabolites
convertible
to
3,4­
dichloroaniline,
calculated
as
linuron,
in
or
on
the
following
raw
agricultural
commodities:
".

The
Agency
has
updated
the
list
of
raw
agricultural
and
processed
commodities
and
feedstuffs
derived
from
crops
(Table
1,
OPPTS
GLN
860.1000).
As
a
result
of
changes
to
Table
1,
diuron
tolerances
for
certain
RACs
which
have
been
removed
from
the
livestock
feeds
table
need
to
be
revoked.
Also,
some
commodity
definitions
must
be
corrected.
A
summary
of
linuron
tolerance
reassessments
is
presented
in
Table
5.

Tolerances
Listed
Under
40
CFR
§180.184(
a):

Pending
label
amendments
for
some
crops,
adequate
residue
data
have
been
submitted
to
reassess
the
established
tolerances
for
the
following
commodities,
as
defined:
asparagus;
carrots;
corn,
field,
fodder;
corn,
field,
forage;
corn,
grain;
cottonseed;
parsnips;
potatoes;
sorghum,
grain;
soybeans;
wheat,
grain;
and
wheat,
straw.
The
available
data
indicate
that
the
established
tolerances
for
field
corn
fodder
and
wheat
straw
must
be
increased,
that
the
established
tolerances
for
asparagus,
carrots,
field
corn
forage,
sorghum
grain,
and
soybeans
are
reassessed
at
the
same
level,
and
that
the
tolerances
for
field
corn
grain,
cottonseed,
parsnips,
potatoes,
and
wheat
grain
may
be
reduced.

The
tolerances
for
soybean
forage
and
hay
should
be
revoked,
provided
that
all
registrants
modify
product
labels
to
include
restrictions
against
the
feeding
of
soybean
forage
and
hay
from
treated
plants
to
livestock.

Adequate
feeding
study
data
have
been
submitted
to
reassess
the
established
tolerances
for
the
fat,
meat,
and
meat
byproducts
of
cattle,
goats,
hogs,
horses,
and
sheep.
The
feeding
study
data
indicate
that
separate
tolerances
are
required
for
the
liver
and
kidney
of
cattle,
goats,
horses,
and
sheep.
The
available
data
also
indicate
that
the
tolerances
for
the
fat,
meat,
and
meat
byproducts
of
cattle,
goat,
horses,
and
sheep
may
be
lowered,
with
the
modification
of
the
meat
byproducts
tolerances
to
state
"meat
byproducts,
exc.
liver
and
kidney".
All
tolerances
for
hog
commodities
may
be
lowered.
55
Inadequate
residue
data
are
available
to
reassess
the
established
tolerances
for:
celery;
corn,
fresh;
corn,
sweet,
fodder;
corn,
sweet,
forage;
sorghum,
fodder;
sorghum,
forage;
wheat,
forage;
and
wheat,
hay.

The
established
tolerances
for
the
following
commodities
should
be
moved
to
§180.184(
c)
because
use
of
linuron
on
these
crops
is
restricted
to
certain
geographical
areas:
cottonseed,
potatoes,
and
all
wheat
commodities.

Tolerances
To
Be
Proposed
Under
40
CFR
§180.184(
a):

The
available
crop
field
trial
and
feeding
study
data
indicate
that
tolerances
for
linuron
residues
must
be
proposed
for:
milk;
liver
of
cattle,
goats,
horses,
and
sheep;
and
kidney
of
cattle,
goats,
horses,
and
sheep.

Tolerances
Listed
Under
40
CFR
§180.184(
c):

Adequate
data
are
available
to
reassess
the
established
tolerance
for
parsley.

Tolerances
To
Be
Proposed
Under
40
CFR
§180.184(
c):

Because
use
of
linuron
on
several
crops
is
restricted
to
certain
geographical
areas,
the
established
tolerances
for
the
following
commodities
should
be
moved
from
§180.184(
a)
to
§180.184(
c):
cottonseed,
potatoes,
and
all
wheat
commodities.
In
addition,
a
tolerance
for
cotton
gin
byproducts
must
be
proposed
under
§180.184(
c);
additional
data
are
required
before
the
appropriate
tolerance
level
may
be
determined.

Pending
Tolerance
Petitions:

Dupont
has
proposed
(PP#
4F4293)
to
increase
the
established
tolerance
for
wheat
straw
from
0.5
ppm
to
2.0
ppm.
This
proposal
was
based
on
crop
field
trial
data
which
indicated
that
the
established
tolerance
was
too
low.
There
are
no
outstanding
residue
chemistry
deficiencies
pertaining
to
this
petition.

Dupont
proposed
(PP#
0F3832)
revisions
to
the
established
tolerances
for
potatoes
and
animal
commodities
as
follows:
0.2
ppm
for
potatoes;
0.1
ppm
for
the
fat,
meat,
and
meat
byproducts,
except
liver
and
kidney,
of
cattle,
goats,
hogs,
horses,
and
sheep;
and
1.0
ppm
for
the
liver
and
kidney
of
cattle,
goats,
hogs,
horses,
and
sheep.
This
petition
is
currently
in
reject
status
because
of
issues
pertaining
to
product
chemistry,
potato
and
poultry
metabolism,
storage
stability,
crop
field
trials,
processed
commodities,
and
reduction
of
residues.
56
IR­
4
has
proposed
a
tolerance
with
regional
registration
(states
east
of
the
Mississippi
River)
for
residues
of
linuron
in/
on
lettuce
at
0.1
ppm
(PP#
1E02486).
There
are
no
outstanding
residue
chemistry
deficiencies
pertaining
to
this
petition.

IR­
4
has
also
proposed
tolerances
for
residues
of
linuron
in/
on
taro
(corms,
including
dasheen)
and
ginger
at
1.0
ppm
(PP#
3E2920).
This
petition
is
currently
in
reject
status
because
of
issues
pertaining
to
product
chemistry,
storage
stability,
and
field
trial
data.

IR­
4
has
proposed
a
tolerance
for
residues
of
linuron
in/
on
lupin
grain,
forage,
and
hay
(PP#
2E04419).
This
petition
is
currently
in
reject
status
because
of
issues
pertaining
to
product
chemistry,
poultry
metabolism,
and
crop
field
trials.
57
(continued;
footnotes
follow)
2.
Tolerance
Reassessment
Table
Table
5.
Tolerance
Reassessment
Summary
for
Linuron.

Commodity
Current
Tolerance
(ppm)
1
Range
of
Residues
(ppm)
2
Tolerance
Reassessment
(ppm)
Comment/
Correct
Commodity
Definition
Tolerances
listed
under
40
CFR
§180.184(
a):

Asparagus
7.0
0.4­
5.0
(0.5­
6.8
when
corrected
for
a
74%
method
recovery)
7.0
Carrots
1
0.08­
0.60
1
[Carrot]

Cattle,
fat
1
0.16
3
0.2
Cattle,
mbyp
1
0.07
3
0.1
[Cattle,
meat
byproducts,
except
kidney
and
liver]

Cattle,
meat
1
0.07
3
0.1
Celery
0.5
<0.05­
0.42
(celery
grown
east
of
the
Rocky
Mountains)
To
be
determined
The
available
data
support
use
east
of
the
Rocky
Mountains;
additional
data
are
required
to
support
use
on
celery
west
of
the
Rocky
Mountains.

Corn,
field,
fodder
1
<0.05­
5.5
6
[Corn,
field,
stover]

Corn,
field,
forage
1
0.023­
0.87
1
Corn,
fresh
(inc.
sweet
K+
CWHR)
0.25
<0.01­<
0.05
To
be
determined
Additional
crop
field
trial
data
are
required.
[Corn,
sweet
(K+
CWHR)]

Corn,
grain
(inc.
popcorn)
0.25
<0.01­
0.06
0.1
Popcorn
grain
tolerance
should
be
deleted
since
there
are
no
registered
uses.
[Corn,
field,
grain]

Corn,
sweet,
fodder
1
0.0189­
4.00
To
be
determined
Additional
crop
field
trial
data
are
required.
[Corn,
sweet,
stover]

Corn,
sweet,
forage
1
<0.01­
2.44
To
be
determined
Additional
crop
field
trial
data
are
required.

Cottonseed
0.25
<0.05
Reassign
This
tolerance
should
be
reclassified
under
180.184(
c)
because
use
of
linuron
on
cotton
is
restricted
to
east
of
the
Rocky
Mountains.

Goats,
fat
1
0.16
3
0.2
[Goat,
fat]
Table
5
(continued).

Commodity
Current
Tolerance
(ppm)
1
Range
of
Residues
(ppm)
2
Tolerance
Reassessment
(ppm)
Comment/
Correct
Commodity
Definition
58
(continued;
footnotes
follow)
Goats,
mbyp
1
0.07
3
0.1
[Goat,
meat
byproducts,
except
kidney
and
liver]

Goats,
meat
1
0.07
3
0.1
[Goat,
meat]

Hogs,
fat
1
0.007
3
0.05
[Hog,
fat]

Hogs,
mbyp
1
0.08
3
0.1
[Hog,
meat
byproducts]

Hogs,
meat
1
0.003
3
0.05
[Hog,
meat]

Horses,
fat
1
0.16
3
0.2
[Horse,
fat]

Horses,
mbyp
1
0.07
3
0.1
[Horse,
meat
byproducts,
except
kidney
and
liver]

Horses,
meat
1
0.07
3
0.1
[Horse,
meat]

Parsnips
(with
or
without
tops)
0.5
<0.05
0.05
[Parsnip,
root]

Potatoes
1
<0.01­
0.07
Reassign
This
tolerance
should
be
reclassified
under
180.184(
c)
as
use
of
linuron
on
potatoes
is
restricted
to
east
of
the
Rocky
Mountains.

Sheep,
fat
1
0.16
3
0.2
Sheep,
mbyp
1
0.07
3
0.1
[Sheep,
meat
byproducts,
except
kidney
and
liver]

Sheep,
meat
1
0.07
3
0.1
Sorghum,
fodder
1
­­
To
be
determined
[Sorghum,
stover]

Sorghum,
forage
1
­­
To
be
determined
Sorghum,
grain
(milo)
0.25
<0.01­
0.16
0.25
[Sorghum,
grain]

Soybeans,
(dry
or
succulent)
1
<0.01­
1.0
1
[Soybean,
seed]

Soybean,
forage
1
Not
applicable
Revoke
These
tolerances
should
be
revoked,
provided
all
pertinent
labels
are
amended
to
include
the
following
feeding
restriction
on
the
product
labels:
"The
feeding
of
treated
forage
or
hay
to
livestock
is
prohibited.
Soybean,
hay
1
Not
applicable
Revoke
Table
5
(continued).

Commodity
Current
Tolerance
(ppm)
1
Range
of
Residues
(ppm)
2
Tolerance
Reassessment
(ppm)
Comment/
Correct
Commodity
Definition
59
(continued;
footnotes
follow)
Wheat,
forage
0.5
­­
Reassign
These
tolerances
should
be
reclassified
under
180.184(
c),
as
use
of
linuron
on
wheat
is
restricted
to
ID,
OR,
and
WA.
Wheat,
grain
0.25
<0.03
Reassign
Wheat,
hay
0.5
­­
Reassign
Wheat,
straw
0.5
0.64­
2.0
Reassign
Tolerances
needed
under
40
CFR
§180.184(
a):

Cattle,
kidney
Not
applicable
1.9
3
2.0
Cattle,
liver
Not
applicable
1.9
3
2.0
Goat,
kidney
Not
applicable
1.9
3
2.0
Goat,
liver
Not
applicable
1.9
3
2.0
Horse,
kidney
Not
applicable
1.9
3
2.0
Horse,
liver
Not
applicable
1.9
3
2.0
Milk
Not
applicable
0.05
3
0.05
Sheep,
kidney
Not
applicable
1.9
3
2.0
Sheep,
liver
Not
applicable
1.9
3
2.0
Tolerances
established
under
40
CFR
§180.184(
c):

Parsley
0.25
<0.06­
0.18
0.25
Tolerances
needed
under
40
CFR
§180.184(
c):

Cotton,
gin
byproducts
Not
applicable
<0.01­
8.14
To
be
determined
Additional
field
trial
data
and/
or
information
is
required.

Cottonseed
0.25
<0.05
0.05
This
tolerance
should
be
reclassified
under
180.184(
c)
because
use
of
linuron
on
cotton
is
restricted
to
east
of
the
Rocky
Mountains.
[Cotton,
undelinted
seed]

Potatoes
1
<0.01­
0.07
0.2
This
tolerance
should
be
reclassified
under
180.184(
c)
because
use
of
linuron
on
potatoes
is
restricted
to
east
of
the
Rocky
Mountains.
[Potato]
Table
5
(continued).

Commodity
Current
Tolerance
(ppm)
1
Range
of
Residues
(ppm)
2
Tolerance
Reassessment
(ppm)
Comment/
Correct
Commodity
Definition
60
Wheat,
forage
0.5
­­
To
be
determined
Crop
field
trial
data
are
required.
This
tolerance
should
be
reclassified
under
180.184(
c),
because
use
of
linuron
on
wheat
is
restricted
to
ID,
OR,
and
WA.

Wheat,
grain
0.25
<0.03
0.05
This
tolerance
should
be
reclassified
under
180.184(
c),
because
use
of
linuron
on
wheat
is
restricted
to
ID,
OR,
and
WA.

Wheat,
hay
0.5
­­
To
be
determined
Crop
field
trial
data
are
required.
This
tolerance
should
be
reclassified
under
180.184(
c),
because
use
of
linuron
on
wheat
is
restricted
to
ID,
OR,
and
WA.

Wheat,
straw
0.5
0.64­
2.0
2.0
The
registrants
may
wish
to
generate
additional
crop
field
trial
data
at
1x
instead
of
proposing
an
increased
tolerance.
This
tolerance
should
be
reclassified
under
180.184(
c),
because
use
of
linuron
on
wheat
is
restricted
to
ID,
OR,
and
WA.

1
Expressed
in
terms
of
linuron
per
se.
2
Refer
to
sections
on
Magnitude
of
the
Residue
in
Crop
Plants,
Magnitude
of
the
Residue
in
Processed
Food/
Feed,
and
Magnitude
of
the
Residue
in
Meat,
Milk,
Poultry,
and
Eggs
for
detailed
discussion
of
residues
in
plant
and
animal
commodities.
3
Expected
residues
at
a
1x
feeding
level.

3.
Codex/
International
Harmonization
No
maximum
residue
limits
(MRLs)
for
linuron
have
been
established
by
Codex
for
any
agricultural
commodity.
In
addition,
no
Canadian
or
Mexican
MRLs
have
been
established
for
linuron.
Therefore,
no
compatibility
questions
exist
with
respect
to
U.
S.
tolerances.
61
F.
BIBLIOGRAPHY
1.
Study
Citations
00018067
E.
I.
du
Pont
de
Nemours
&
Company
(1961)
Residue
Data
­
Linuron
­
Sweetcorn.
(Unpublished
study
received
Apr
8,
1963
under
unknown
admin.
no.;
CDL:
124702­
B)

00018076
E.
I.
du
Pont
de
Nemours
&
Company
(1967)
Residue
Information.
(Unpublished
study
received
Jan
10,
1968
under
352­
270;
CDL:
124701­
A)

00018087
California.
Department
of
Food
and
Agriculture
(19??)
Determination
of
Linuron
Residues
on
Asparagus.
Undated
method.
(Unpublished
study/
received
Mar
20,
1973
under
3E1373;
CDL:
093663­
B)

00018089
California.
Department
of
Agriculture
(1974)
Linuron
Recoveries
from
Asparagus
by
Alkaline
Hydrolysis
(200
gram
samples).
Method
dated
Jul
31,
1974.
(Unpublished
study
received
on
unknown
date
under
3E1373;
CDL:
093662­
B)

00018127
E.
I.
du
Pont
de
Nemours
and
Company
(1962)
Determination
of
3­(
3,4­
Dichlorophenyl)
1
methoxy­
1­
methylurea
(Linuron)
in
Soils
and
Plant
Tissue.
(Unpublished
study
received
Nov
8,
1962
under
352­
270;
CDL:
026676­
D)

00018148
E.
I.
du
Pont
de
Nemours
&
Company
(1970)
Residue
Data:
Table
A.
(Unpublished
study
received
Sep
16,
1971
under
352­
270;
CDL:
125817­
A)

00018171
E.
I.
du
Pont
de
Nemours
&
Company,
Incorporated
(1966)
Results
of
Tests
on
the
Amount
of
Residue
in
Crops
Grown
on
Treated
Soil.
(Unpublished
study
received
Oct
5,
1966
under
7F0542;
CDL:
090665­
C)

00018172
E.
I.
du
Pont
de
Nemours
&
Company,
Incorporated
(1963)
Residue
Data:
Linuron
Carrots
Pre­
emergence
Treatment.
(Unpublished
study
received
Oct
5,
1966
under
7F0542;
CDL:
090665­
D)

00018173
Belasco,
I.
J.
(1967)
Absence
of
Tetrachloroazobenzene
in
Soils
Treated
with
Diuron
and
Linuron.
(Unpublished
study
received
on
unknown
date
under
7F0542;
submitted
by
E.
I.
du
Pont
de
Nemours
&
Co.,
Inc.,
Wilmington,
Del.;
CDL:
092830­
A)

00018175
E.
I.
du
Pont
de
Nemours
and
Company
(19??)
Residue
Data:
Linuron
­
Diuron:
Cereal
Grains.
(Unpublished
study
received
Oct
14,
1966
under
7F0542;
CDL:
092830­
D)
62
00018176
Reasons,
K.
M.;
Furtick,
W.
R.;
Atkeson,
G.
A.;
et
al.
(1966)
Additional
Data
in
Support
of
Petition.
(Unpublished
study
received
Oct
14,
1966
under
7F0542;
submitted
by
E.
I.
du
Pont
de
Nemours&
Co.,
Inc.,
Wilmington,
Del.;
CDL:
092830­
G)

00018206
E.
I.
du
Pont
de
Nemours
and
Company
(1962)
Results
of
Tests
on
the
Amount
of
Residue
in
Crops
Grown
on
Treated
Soil:
[Linuron].
(Unpublished
study
received
Apr
13,
1963
under
PP0356;
CDL:
092640­
E)

00018209
E.
I.
du
Pont
de
Nemours
&
Company,
Incorporated
(1954?)
Feeding
Study
at
1
PPM
in
Corn
Fodder.
(Unpublished
study
received
Apr
13,
1963
under
PP0356;
CDL:
092640­
I)

00018210
E.
I.
du
Pont
de
Nemours
&
Company,
Incorporated
(1954?)
Feeding
Study
at
50
PPM
in
Total
Daily
Diet.
(Unpublished
study
received
Apr
13,
1963
under
PP0356;
CDL:
092640­
J)

00018375
E.
I.
du
Pont
de
Nemours
and
Company
(1962)
Linuron
Livestock
Feeding
Studies:
Milk
and
Meat.
(Unpublished
study
received
Feb
7,
1963
under
PP0356;
CDL:
090386­
B)

00018382
E.
I.
du
Pont
de
Nemours
&
Company
(1962)
Residue
Data:
Linuron
­
Sweetcorn
­
1962.
(Unpublished
study
received
Apr
13,
1962
under
352­
270;
CDL:
090385­
D)

00018383
E.
I.
du
Pont
de
Nemours
and
Company
(1963)
Linuron:
Poultry
Feeding
Studies:
Residue
Data
­
Tissues
and
Eggs.
(Unpublished
study
received
Apr
13,
1962
under
352­
270;
CDL:
090385­
E)

00018443
E.
I.
du
Pont
de
Nemours
&
Company,
Incorporated
(1970)
The
Results
of
Tests
on
the
Amount
of
Linuron
Residue
Remaining
on
or
in
Celery
including
a
Description
of
the
Analytical
Method
Used.
(Unpublished
study
received
Apr
18,
1971
under
1E1148;
submitted
by
Interregional
Research
Project
No.
4,
New
Brunswick,
N.
J.;
CDL:
090935­
A)

00018450
E.
I.
du
Pont
de
Nemours
and
Company,
Incorporated
(1961)
Du
Pont
Herbicide
326
Corn
(Unpublished
study
received
on
unknown
date
under
PP0356;
CDL:
098656­
A)

00018775
E.
I.
du
Pont
de
Nemours
and
Company,
Incorporated
(1961)
Linuron
­
Livestock
Feeding
Studies.
(Unpublished
study
received
on
unknown
date
under
PP0356;
CDL:
098656­
B)

00027624
E.
I.
du
Pont
de
Nemours
and
Company
(1966)
Name,
Chemical
Identity,
and
Composition:
[Linuron].
(Unpublished
study
received
Oct
14,1966
under
7F0542;
CDL:
092830­
E)

00027635
E.
I.
du
Pont
de
Nemours
&
Company,
Incorporated
(1963)
Results
of
Tests
on
the
Amount
of
Residue
in
Crops
Grown
on
Treated
Soil:
[Linuron].
(Unpublished
study
received
Feb
18,
1963
under
PP0413;
CDL:
090447­
B)
63
00029932
Belasco,
I.
J.
(1979)
The
Metabolism
of
14C­
Phenyl
Labeled
Linuron
in
the
Lactating
Nanny
Goat.
(Unpublished
study
received
Jan
21,
1980
under
352­
270;
submitted
by
E.
I.
du
Pont
de
Nemours
&
Co.,
Wilmington,
Del.;
CDL:
241635­
C)

00159802
E.
I.
du
Pont
de
Nemours
&
Co.,
Inc.
(1978)
Linuron
Freezer
Storage
Study
on
Soybean
and
Sugarbeet
Tops.
Unpublished
study.
14
p.

00163267
E.
I.
du
Pont
de
Nemours
&
Co.,
Inc.
(1986)
Linuron
Residue
Study:
Response
to
Special
Review/
Reregistration
Guidance
Document
­
EPA
Case
No.
47
(6/
29/
84).
Unpublished
compilation.
159
p.

00164195
Fuesler,
T.
(1986)
Metabolism
of
Carbon
14
­Linuron
in
Field­
grown
Soybean
Plants:
Document
No.
AMR­
570­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
&
Co.,
Inc.
49
p.

00164196
Ferguson,
E.
(1986)
Metabolism
of
Carbon
14
­Linuron
by
Potato
Plants:
Document
No.
AMR­
559­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
&
Co.,
Inc.
35
p.

40049201
McIntosh,
C.
(1986)
Linuron
Processing
Studies
­
Potatoes:
Du
Pont
Study
No.
AMR­
587­
86
No.
1.
Unpublished
study
prepared
in
cooperation
with
National
Food
Laboratory
and
Enviro­
Bio­
Tech.,
Ltd.
33
p.

40084801
Ferguson,
E.
(1986)
Metabolism
of
Carbon
14
­Linuron
by
Corn
Plants:
Laboratory
Project
ID.
AMR­
642­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.,
Inc.
64
p.

40104101
Erbes,
D.
(1986)
Confined
Accumulation
Study
of
Phenyl(
U)­
carbon
14
Linuron
on
Rotational
Crops:
Laboratory
Project
ID:
AMR­
609­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
&
Co.,
Inc.
53
p.

40210901
E.
I.
du
Pont
de
Nemours
&
Co.
(1987)
Linuron
Residue
Study:
Supplement:
Response
to
Special
Review/
Reregistration
Guidance
Document:
Lab
Project
ID:
47.
Unpublished
compilation
prepared
in
cooperation
with
Enviro­
Bio­
Tech,
Ltd.
676
p.

40537601
E.
I.
du
Pont
de
Nemours
&
Co.,
Inc.
(1988)
Linuron
Residue
Study:
Response
to
Special
Review/
Reregistration:
Du
Pont
EPA
Case
No.
47.
Unpublished
study
prepared
by
Enviro­
Bio­
Tech,
Ltd.
268
p.

40730101
Erbes,
D.
(1988)
Supplement
to:
Confined
Accumulation
Study
of
[Phenyl(
U)­[
Carbon
14]]
Linuron
on
Rotational
Crops
...:
Laboratory
Project
ID:
AMR
609­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.,
Inc.
85
p.
64
41189801
Baron,
J.
(1989)
Linuron:
Magnitude
of
Residue
on
Parsley:
Project
ID:
IR­
4
PR
No.
925/
3035/
3629.
Unpublished
study
prepared
by
Cornell
University,
IR­
4
Northeast
Region.
74
p.

41241201
Fujinari,
E.;
Guinivan,
R.
(1989)
Reduction
of
Linuron
Residues
During
Cooking
of
Carrots,
Asparagus,
and
Potatoes:
Laboratory
Project
ID
AMR­
587­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.,
Inc.
in
cooperation
with
Enviro­
Bio­
Tech.,
Ltd.
83
p.

41241202
Guinivan,
R.
(1989)
Magnitude
of
Residues
of
Linuron
in
Soybeans
and
Processed
Products:
Laboratory
Project
ID
AMR­
969­
87.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.,
Inc.
in
cooperation
with
The
National
Food
Laboratory,
Inc.
and
Enviro­
Bio­
Tech.
Ltd.
66
p.

41377601
Eble,
J.
(1989)
Magnitude
of
Lorox
L
and
Lorox
DF
Herbicide
Residues
in
Sorghum:
Lab
Project
Number:
AMR/
1131/
88.
Unpublished
study
prepared
by
Morse
Laboratories.
47
p
41452601
Elbe,
J.
(1990)
Magnitude
of
Lorox
L
and
Lorox
DF
Herbicide
Residues
in
Asparagus:
Lab
Project
No:
ML89­
0125­
DUP:
AMR­
1134­
88.
Unpublished
study
prepared
by
Morse
Laboratories.
51
p.

41452701
Elbe,
J.
(1990)
Magnitude
of
Lorox
L
Herbicide
Residues
in
Potatoes:
Lab
Project
Number:
AMR­
1132­
88.
Unpublished
study
prepared
by
Morse
Laboratories.
47
p.

41501501
Eble,
J.
(1989)
Magnitude
of
Lorox
L
and
Lorox
DF
Herbicide
Residues
in
Celery:
Lab
Project
Number:
AMR­
1133­
88.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
&
Co.,
Inc.
42
p.

41503401
Eble,
J.
(1990)
Magnitude
of
Lorox
L
and
Lorox
DF
Herbicide
Residues
in
Cotton:
Lab
Project
Number:
AMR­
1130­
88.
Unpublished
study
prepared
by
du
Pont
Agric.
Products
Dept.,
Glasgow
Residue
Lab.
47
p.

41569901
Eble,
J.
(1990)
Magnitude
of
Lorox
L
and
Lorox
DF
Herbicide
Residues
in
Cotton:
Lab
Project
Number:
AMR­
1130­
88.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
&
Co.
47
p.

41716101
Brown,
A.
(1986)
Supplement
No.
1
to:
Metabolism
of
[carbon
14]
­
Linuron
by
Potato
Plants:
Lab
Project
Number:
AMR
559­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.,
Inc.
20
p.

41716102
Brown,
A.
(1986)
Supplement
No.
1
to
Metabolism
of
[carbon
14]
­
Linuron
in
Field­
grown
Soybean
Plants:
Lab
Project
Number:
AMR
570­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.,
Inc.
25
p.
65
41716103
E.
I.
du
Pont
de
Nemours
and
Co.
(1990)
Supplement
No.
1
to:
Linuron
Residue
Study:
Supplement:
Response
to
Special
Review/
Reregistration
Guidance
Document­
EPA
Case
No.
47
(6/
29/
84):
Lab
Project
Number:
47.
Unpublished
study
prepared
by
Enviro­
Bio­
Tech,
Ltd.
33
p.

41938101
Brown,
A.
(1991)
Supplement
#2
to:
Metabolism
of
[Carbon
14]
Linuron
by
Potato
Plants
(MRID
00164196):
Lab
Project
Number:
AMR
559­
86.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
30
p.

42379901
McClory,
J.;
Tomic,
D.
(1992)
Residues
of
Lorox
Herbicide
in
Carrots
as
Affected
by
Cooking:
Lab
Project
Number:
AMR
1701­
90:
ML91­
0259­
DUP.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Comp.,
Morse
Laboratories.
81
p.

42397201
McClory,
J.;
Tomic,
D.
(1992)
Residues
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Lorox
Herbicide
in
Potatoes
and
their
Processed
Fractions:
Lab
Project
Number:
AMR
1698­
90:
65388­
01:
ML90­
0211­
DUP.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.,
Arthur
D.
Little,
Inc.,
and
Others.
180
p.

42462901
McClory,
J.;
Jones,
W.;
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R.
et
al.
(1992)
Residues
of
Lorox
Herbicide
in
Soybeans
and
Its
Processed
Fractions:
Lab
Project
Number:
AMR
1699­
90.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
in
cooperation
with
The
Texas
A&
M
University
System.
68
p.

42462902
McClory,
J.;
Tomic,
D.
(1992)
Residues
of
Lorox
Herbicide
in
Asparagus
as
Affected
by
Cooking:
Lab
Project
Number:
AMR
1700­
90:
ML90­
0258­
DUP.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
in
cooperation
with
Morse
Laboratories,
Inc.
70
p.

42542101
Brown,
A.
(1992)
Plant
Metabolism
Study
of
[Phenyl(
U)­
carbon
14]
Linuron
in
Potatoes:
Lab
Project
Number:
AMR
2236­
91.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Company.
53
p.

42542102
McClory,
J.;
Devine,
P.
(1992)
Residues
of
Lorox
Herbicide
in
Grain
Sorghum
Seed
and
Its
Processed
Fractions:
Lab
Project
Number:
AMR
1918­
91:
LOR­
1918­
91:
ML92­
0324­
DUP.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Company,
Texas
A&
M,
and
Morse
Labs,
Inc.
88
p.

42548401
Brown,
A.
(1992)
Plant
Metabolism
Study
of
[Phenyl(
U)­
carbon
14]
Linuron
in
Soybeans:
Lab
Project
Number:
AMR
2159­
91.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
60
p.

42560001
McClory,
J.;
Tomic,
D.
(1992)
Residues
of
Lorox
Herbicide
in
Field
Corn
Grain
and
its
Processed
Fractions:
Lab
Project
Number:
AMR
1916­
91:
LOR­
1916­
91:
ML92­
0294­
DUP.
Unpublished
study
prepared
by
E.
I.
DuPont
de
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and
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116
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66
42605901
McClory,
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(1992)
Residues
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in
Wheat
and
Wheat
Straw
Following
Application
of
Lorox
DF
Herbicide:
Lab
Project
Number:
AMR
2136­
92:
LOR­
2136­
92.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
and
The
Texas
A
&M
University
System.
59
p.

42635401
Hawkins,
D.;
Elsom,
L.;
Dighton,
M.;
et
al.
(1993)
The
Metabolism
of
(carbon
14)­
Linuron
in
Laying
Hens:
Lab
Project
Number:
HRC/
DPT
267/
921558:
AMR­
2200­
91.
Unpublished
study
prepared
by
Huntingdon
Research
Centre
Ltd.
101
p.

42836701
McClory,
J.;
Jones,
W.;
Tomic,
D.
(1993)
Freezer
Storage
Stability
of
Linuron
on
Fresh
and
Cooked
Asparagus:
Lab
Project
Number:
AMR
2339­
92.
Unpublished
study
prepared
by
DuPont
Agricultural
Products.
44
p.

42836702
McClory,
J.;
Jones,
W.;
Tomic,
D.
(1993)
Freezer
Storage
Stability
of
Linuron
on
Wheat
Straw
and
Grain:
Lab
Project
Number:
AMR
2623­
93.
Unpublished
study
prepared
by
DuPont
Agricultural
Products.
40
p.

42913301
McClory,
J.;
Tomic,
D.
(1993)
Freezer
Storage
Stability
of
Linuron
On
Potatoes
and
Its
Processed
Fractions:
(Interim
Report):
Lab
Project
Number:
AMR
2240­
91:
ML91­
0280­
DUP:
METH­
65.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
and
Morse
Labs,
Inc.
91
p.

42948501
Lomax,
N.
(1993)
Letter
Sent
to
Office
of
Pesticide
Programs
dated
Oct.
1,
1993
concerning
preliminary
results­
linuron­
magnitude
of
residue
study
on
corn.
Prepared
by
DuPont
Agricultural
Products.
5
p.

42974401
Jones,
W.;
Tomic,
D.
(1993)
Freezer
Storage
Stability
of
Linuron
on
Fresh
and
Cooked
Carrots:
Lab
Project
Number:
AMR
2442­
92.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
&
Co.
39
p.

43039101
McClory,
J.;
Tomic,
D.
(1993)
Residues
of
Linuron
in
Soybean
Seed
Following
Application
of
Lorox
DF
Herbicide:
Lab
Project
Number:
AMR
2064­
92:
ML93­
0368­
DUP.
Unpublished
study
prepared
by
DuPont
Agricultural
Products
and
Morse
Labs,
Inc.
145
p.

43040001
McClory,
J.;
Tomic,
D.
(1993)
Freezer
Storage
Stability
of
Linuron
on
Corn,
Sorghum
and
Their
Processed
Fractions:
Lab
Project
Number:
AMR
2591­
92:
ML92­
0360­
DUP:
65364.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
&
Co.,
Agricultural
Products
and
Morse
Laboratories,
Inc.
63
p.

43044101
McClory,
J.;
Tomic,
D.
(1993)
Residues
of
Linuron
in
Corn
Forage,
Seed,
and
Stover
Following
Applications
of
Lorax
DF
Herbicide:
Final
Report:
Lab
Project
Number:
AMR
2065­
92:
67
ML93­
0367­
DUP.
Unpublished
study
prepared
by
DuPont
Agricultural
Products
and
Morse
Labs,
Inc.
186
p.

43104401
McClory,
J.;
Jones,
W.;
Tomic,
D.
(1994)
Freezer
Storage
Stability
of
Linuron
on
Soybean
Processed
Fractions:
Lab
Project
Number:
AMR/
2501/
92.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
42
p.

43215901
Jones,
W.;
Tomic,
D.
(1994)
Freezer
Storage
Stability
of
Linuron
on
Fresh
Celery:
Lab
Project
Number:
AMR
2502­
92.
Unpublished
study
prepared
by
DuPont
Agricultural
Products.
39
p.

43215902
McClory,
J.;
Tomic,
D.
(1994)
Freezer
Storage
Stability
of
Linuron
on
Potatoes
and
Its
Processed
Fractions:
Supplement:
Lab
Project
Number:
AMR
2240­
91:
ML91­
0280­
DUP.
Unpublished
study
prepared
by
DuPont
Agricultural
Products
and
Morse
Laboratories,
Inc.
69
p.

43245101
Hawkins,
D.;
Elsom,
L.;
Dighton,
M.;
et
al.
(1994)
The
Metabolism
of
(carbon
14)­
Linuron
in
Laying
Hens:
Supplement
1
the
Identification
of
Metabolite
B:
Lab
Project
Number:
HRC/
DPT
267/
921558:
AMR
2200­
91.
Unpublished
study
prepared
by
Huntingdon
Research
Centre
Ltd.
20
p.

43288301
Jones,
W.
(1994)
Freezer
Storage
Stability
of
Linuron
on
Fresh
and
Cooked
Carrots:
Supplement:
Lab
Project
Number:
AMR/
2442/
92.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
31
p.

43288302
McClory,
J.;
Jones,
W.
(1994)
Freezer
Storage
Stability
of
Linuron
on
Fresh
and
Cooked
Asparagus:
Lab
Project
Number:
AMR/
2339/
92.
Unpublished
study
prepared
by
E.
I.
du
Pont
de
Nemours
and
Co.
46
p.

43356202
McClory,
J.;
Jones,
W.;
Tomic,
D.
(1994)
Freezer
Storage
Stability
of
Linuron
on
Soybean
Processed
Fractions:
Supplement
No.
1:
Lab
Project
Number:
AMR/
2501/
92.
Unpublished
study
prepared
by
DuPont
Experimental
Station.
49
p.

43356203
McClory,
J.;
Tomic,
D.
(1994)
Freezer
Storage
Stability
of
Linuron
on
Corn,
Sorghum
and
Their
Processed
Fractions:
Supplement
No.
1:
Lab
Project
Number:
AMR/
2591/
92:
ML92/
0360/
DUP.
Unpublished
study
prepared
by
DuPont
Experimental
Station
and
Morse
Laboratories,
Inc.
45
p.

43681401
Lurvey,
E.
(1995)
Linuron:
Magnitude
of
Residue
on
Celery:
Lab
Project
Number:
4936/
91/
NYR44:
4936/
91/
CA061:
4936/
91/
OR025.
Unpublished
study
prepared
by
IR­
4.
223
p.

45302201
Mickelson,
K.
(2000)
Magnitude
of
Linuron
Residues
in/
on
Cotton
and
Processed
Fractions
of
Cotton
Resulting
From
Pro­
Emergence
and
Post­
Directed
Applications
of
Lorox
DF
and
68
Linex
4L:
Final
Study
Report:
Lab
Project
Number:
AA000903:
GP00­
021:
CA1.
Unpublished
study
prepared
by
American
Agricultural
Services,
Inc.
217
p.

45444101
Willard,
T
(2000)
Magnitude
of
Linuron
Residues
in/
on
Sweet
Corn
Resulting
From
a
Post­
Directed
Applications
of
Lorox
DF
and
Linex
4L:
Final
Study
Report:
Lab
Project
Number:
AA000901:
GP00­
022.
Unpublished
study
prepared
by
American
Agricultural
Services,
Inc.
199
p.
69
(continued)
2.
Agency
Memoranda
Citations
Table
7.
Agency
Memoranda
Citations.

Date
DP
Barcode
CB
No.
From
To
MRID
Nos.
Subject
8/
12/
85
­­
1244
J.
Garbus
R.
Taylor/
J.
Miller
and
I.
Sunzenauer
00159802
Linuron:
Reregistration
and
Special
Review:
Storage
Stability
Data.
Accession
No.
258681
10/
29/
86
­­
1317
J.
Garbus
I.
Sunzenauer
and
R.
Taylor
00163267
ID.
No.
035506:
Linuron:
Reregistration
and
Special
Review:
Response
to
Data
Call­
In.
Additional
Residue
Data
for
Soybeans,
Corn,
Carrots,
Asparagus,
and
Potatoes.
Access.
No.
264383
6/
2/
87
­­
2279
J.
Garbus
M.
Boodee
40049201
ID.
No.
0035506:
Linuron:
Reregistration
and
Special
Review:
Potato
Processing
Protocol.

6/
2/
87
­­
2333
J.
Garbus
M.
Boodee
40210901
ID.
No.
0035506:
Linuron:
Reregistration
and
Special
Review:
Response
to
Data
Call­
In.
Additional
Residue
Data
for
Soybeans,
Corn,
Carrots,
Asparagus,
and
Potatoes.

12/
24/
87
­­
2838
L.
Propst
R.
Taylor
and
M.
Boodee
and
Toxicology
Branch
40084801
Metabolism
of
14C­
Linuron
by
Corn
Plants.
Data
Requirement
for
the
Linuron
Registration
Standard.

10/
5/
89
­­
5658
F.
Griffith
H.
Jamerson
41189801
PP#
6E3416
Linuron
on
Parsley.
Evaluation
of
the
July
10,
1989
Amendment.
(MRID
#411898­
01
(HED
Project
#9­
1934)

10/
31/
89
­­
5858
C.
Olinger
R.
Hundemann
41241201
and
41241202
Review
of
Linuron
Cooking
Studies
(Carrots,
Asparagus,
Potatoes)
and
Soybean
Processing
Studies,
ID
No.
035506;
Record
No.
253170
4/
25/
90
­­
None
E.
Zager
L.
Rossi
None.
Linuron
Reregistration:
Data
Waiver
Request
for
Residues
of
Lorox®
on
Parsnips
Table
7
(continued).

Date
DP
Barcode
CB
No.
From
To
MRID
Nos.
Subject
70
(continued)
6/
11/
90
­­
6210­
6215
F.
Griffith
R.
Taylor
and
Toxicology
Branch
00264283,
00265637,
00018375,
00029932,
00027635,
40210901,
and
41241201
PP#
0F3832
Linuron
on
Potatoes;
Meat,
Fat,
and
Meat
Byproducts
of
Cattle,
Goats,
Hogs,
Horses,
and
Sheep.
Review
of
Analytical
Methods
and
Residue
Data.

3/
26/
91
­­
6663
and
6994
R.
Perfetti
R.
Engler
and
L.
Rossi
41376601,
41452601,
41452701,
41569901,
41503401
and
41501501
E.
I.
du
Pont
de
Nemours
and
Co.,
Inc.:
Response
to
the
Linuron
Reregistration
Standard:
Cropfield
[sic.]
Trials
4/
25/
91
D160079
7523
R.
Perfetti
R.
Engler
and
L.
Rossi
41716101­
41716103
E.
I.
du
Pont
de
Nemours
and
Co.,
Inc.:
Response
to
the
Linuron
Reregistration
Standard:
Residue
Chemistry
8/
5/
91
D162080
7731
W.
Wassell
H.
Jamerson
and
Toxicology
Branch
None
PP#
1E02486.
Linuron
(Lorox®
Weed
Killer,
EPA
Reg.
No.
352­
270)
in
or
on
Lettuce.
Evaluation
of
the
amendment
dated
2/
21/
91.

5/
21/
92
D167107
8391
P.
Deschamp
L.
Rossi/
C.
Peterson
41938101
Reregistration
of
Linuron.
Qualitative
Nature
of
the
Residue
in
Plants
(potato
metabolism
study).

5/
21/
92
D167107
8391
P.
Deschamp
L.
Rossi/
C.
Peterson
41938101
Reregistration
of
Linuron.
Qualitative
Nature
of
the
Residue
in
Plants
(potato
metabolism
study).

9/
2/
92
D181454
10368
S.
Knizner
L.
Rossi
and
B.
Burnam
42397201
Linuron.
Section
6(
a)(
2)
Data.
Review
of
"Residues
of
Lorox
Herbicide
in
Potatoes
and
their
Processed
Fractions,
Du
Pont
Project
No.
AMR
1698­
90".

9/
8/
92
D181455
10370
S.
Knizner
C.
Peterson
42379901
Linuron.
Review
of
"Residues
of
Lorox
Herbicide
in
Carrots
as
Affected
by
Cooking.
Du
Pont
Project
No.
AMR
1701­
90".

11/
5/
92
D181229
10326
M.
Peters
H.
Jamerson
None
PP#
3E2920,
Linuron
(Lorox®,
EPA
Reg.
No.
352­
270)
in
or
on
Ginger
and
Taro
(Corms);
Evaluation
of
revised
sections
B
and
F.

1/
15/
93
D185892
11063
R.
Perfetti
L.
Rossi
and
E.
Saito
None
Response
to
the
Linuron
Reregistration
Standard:
Residue
Chemistry
Data
Waiver
request
Table
7
(continued).

Date
DP
Barcode
CB
No.
From
To
MRID
Nos.
Subject
71
(continued)
3/
18/
93
D182595
10586
D.
McNeilly
C.
Peterson
42462901
and
42462902
Linuron:
Soybean
processing
and
an
asparagus
cooking
study.

5/
10/
93
D188028
11362
D.
McNeilly
P.
Perreault
42605901
Linuron:
Wheat
Residue
Data
and
a
Waiver
Request
for
Wheat
Processing
Study.

7/
13/
93
D188001
11360
D.
McNeilly
P.
Perreault
42560001
Linuron:
Corn
Processing
Study.

8/
18/
93
D179614
10061
R.
Griffin
H.
Jamerson
None
PP#
2E04119,
Linuron
(Lorox®,
EPA
Reg.
No.
352­
270)
in/
on
Lupin.

9/
5/
93
D195090
12553
D.
McNeilly
P.
Perreault
42836701
and
42836702
Storage
Stability:
Asparagus
and
Wheat.

11/
18/
93
D187993
11358
D.
McNeilly
P.
Perreault
42542101
and
42542102
Linuron:
Potato
Metabolism
Study,
Sorghum
Grain
Processing
Data,
and
a
Waiver
request
for
the
Sorghum
Grain
Dust
Study.

11/
18/
93
D187998
11359
D.
McNeilly
P.
Perreault
42548401
Linuron
Soybean
Metabolism
Study.

11/
18/
93
D188002
11361
D.
McNeilly
P.
Perreault
42635401
Linuron
Poultry
Metabolism
Study.

12/
15/
93
D196857
12835
D.
McNeilly
W.
Allen
42948501
Linuron:
6(
a)(
2)
Report
of
Over­
tolerance
Residues
in
or
on
Corn
Fodder.

2/
18/
94
D194477
12392
D.
McNeilly
L.
Rossi
and
E.
Saito
None
Linuron
Reregistration
Eligibility
Document
(RED).

3/
9/
94
D197620
13020
and
13021
D.
McNeilly
V.
Walters
and
P.
Perreault
None
PP#
4F4293:
Linuron,
request
to
raise
tolerance
on
wheat
straw
to
2.0
ppm.

3/
16/
94
D198859
13162
D.
McNeilly
P.
Perreault
43039101
Linuron:
Soybean
Magnitude
of
the
Residue
Data.

3/
16/
94
D199375
13213
D.
McNeilly
P.
Perreault
43104401
Linuron:
Storage
Stability
of
Linuron
in/
on
Soybean
Processed
Fractions.

3/
28/
94
D198851
13161
D.
McNeilly
P.
Perreault
and
W.
Allen
43044101
Linuron:
Magnitude
of
the
Residue
in/
on
Corn;
6(
a)(
2)
residue
data.
Date
DP
Barcode
CB
No.
From
To
MRID
Nos.
Subject
72
3/
29/
94
D198861
13160
D.
McNeilly
P.
Perreault
43040001,
42913301,
and
42974401
Linuron:
Storage
Stability
of
Linuron
in/
on
Carrots,
Corn,
Potatoes,
Sorghum,
and
Processed
Fractions.

7/
27/
94
D204807
13915
D.
Miller
P.
Perreault
43245101
Linuron.
Response
to
Registrant's
Supplemental
Information
re:
Metabolism
in
Laying
Hens.

9/
23/
94
D206666
14229
D.
Miller
K.
Jones
43288301
and
43288302
Linuron:
Addendum
to
RED.
Storage
Stability
Study
(fresh
and
cooked
carrots
and
fresh
and
cooked
asparagus).

1/
11/
95
D203624
and
D207488
13789
and
14366
S.
Hummel
K.
Jones
43215901,
43215902,
43356202,
and
433562203
Linuron
(035506),
Reregistration
Case
No.
0047:
Storage
Stability
of
Linuron
in/
on
Celery,
Corn,
Potatoes,
Sorghum,
and
Processed
Fractions
of
Corn,
Sorghum,
and
Soybeans.

2/
21/
95
D212230
15113
S.
Hummel
K.
Jones
None
Linuron.
(035506)
Addendum
to
RED
Residue
Chemistry
Chapter
Reregistration
Case
No.
0047.

5/
9/
95
D211335
15011
W.
Cutchin
H.
Jamerson
and
J.
Smith
None
PP#
5E04464,
Request
for
Increase
in
Tolerance.
Linuron
on
Asparagus.

9/
5/
95
D218302
15998
D.
Miller
K.
Jones
None
Linuron.
(035506)
CBRS
Response
to
DuPont
Certification
re:
Product
Chemistry
and
Crop
Field
Trials
(Asparagus
and
Carrots).
GDLNs
61­
2(
a)
and
171­
4(
k).

10/
3/
95
D218971
16149
S.
Hummel
K.
Jones
and
P.
Parsons
None
Linuron
(035506)
Tolerance
Recommendations
for
RED.

10/
13/
95
D216614
and
D216621
15772
and
15773
W.
Cutchin
R.
Taylor
43681401
ID#
s:
001812­
00245
and
001812­
00320,
Request
for
Amended
Use.
Linuron
on
Celery.

1/
7/
97
D227293
17327
C.
Olinger
J.
Redden
None
Reregistration
of
Linuron:
Cancellation
of
Wheat
Registration;
Chemical
No.
35506.
Case
No.
0047
9/
24/
01
D271950
None
J.
Punzi
45302201
Magnitude
of
the
Residue
in
Cotton
Gin
Byproducts
and
a
Cotton
Processing
Study.

9/
21/
01
D276294
None
J.
Punzi
45444101
Magnitude
of
the
Residue
in
Sweet
Corn
Commodities
73
