Bifenthrin/
128825/
IR­
4
DACO
7.4.1/
7.4.2/
OPPTS
860.1500/
OECD
IIA
6.3.1,
6.3.2,
6.3.3
and
IIIA
8.3.1,
8.3.2,
8.3.3
Crop
Field
Trial 
Dried
Beans
and
Peas
DP#:
310089/
MRID#:
45642701
Page
1
of
8
Primary
Evaluator:
Sarah
J.
Levy,
Chemist
Registration
Action
Branch
1
(
RAB1)
Health
Effects
Division
(
HED;
7509C)
Date:
06­
APR­
2006
Approved
by:
George
Kramer,
Ph.
D.,
Chemist
RAB1/
HED
(
7509C)
Date:
06­
APR­
2006
This
DER
was
originally
prepared
under
contract
by
Dynamac
Corporation
(
1910
Sedwick
Road,
Building
100,
Suite
B,
Durham,
NC
27713;
submitted
10/
17/
2005).
The
DER
has
been
reviewed
by
HED
and
revised
to
reflect
current
Office
of
Pesticide
Programs
(
OPP)
policies.

STUDY
REPORT:

45624701.
Culligan,
J.
(
2001).
Magnitude
of
the
Residue
of
Bifenthrin
and
of
Sulfentrazone
and
its
Significant
Metabolites
in/
on
Dried
Shelled
Beans
and
Peas
Treated
with
Authority
 
75
DF
Herbicide
and
Capture
®
2EC
Insectiside­
Miticide.
Lab
Project
Number:
P­
3527.
Study
No
000CRO01R1.
Unpublished
study
prepared
by
FMC
Corporation.
245
pages.

EXECUTIVE
SUMMARY:

A
total
of
15
field
trials
were
conducted
during
2001
on
dried
beans
(
9
trials)
and
peas
(
6
trials)
during
the
2001
growing
season.
Bifenthrin
(
2
lb/
gal
emulsifiable
concentrate
(
EC))
was
applied
to
dried
beans
as
three
broadcast
foliar
applications
at
0.1
lb
ai/
A/
application,
for
a
total
of
0.3
lb
ai/
A/
season.
The
initial
application
was
made
at
the
2­
to
6­
node
stage,
the
second
application
was
made
at
bloom
through
pod
fill,
and
the
final
application
was
made
at
early
maturity,
~
14
days
prior
to
normal
harvest.
Retreatment
intervals
(
RTIs)
for
dried
beans
were
10­
44
days.
In
the
six
dried
pea
field
trials,
bifenthrin
(
2
lb
/
gal
EC)
was
applied
as
two
broadcast
foliar
applications
at
0.1
lb
ai/
A/
application,
at
approximately
21
and
14
days
prior
to
normal
maturity,
for
a
total
of
0.2
lb
ai/
A/
season.
The
RTIs
for
the
dried
pea
trials
were
6­
7
days.
At
commercial
maturity
(
13­
15
day
pre­
harvest
intervals
(
PHIs),
a
single
control
and
duplicate
treated
samples
of
dried
beans
or
peas
were
collected
from
each
trial.
To
examine
residue
decline,
additional
duplicate
samples
were
collected
at
9,
14,
19,
and
27
day
PHIs
from
one
dried
bean
trial
and
at
12,
15,
20,
and
27
day
PHIs
from
one
dried
pea
trial.
Samples
were
stored
frozen
for
up
to
2
months,
an
interval
supported
by
the
available
storage
stability
data.

The
gas
chromatography
(
GC)/
mass­
selective
detection
(
MSD)
method
used
to
determine
bifenthrin
residues
in/
on
beans
and
peas
(
FMC
Corporation
Report
No.
P­
3426M)
was
adequately
validated
in
conjunction
with
the
field
trial
analyses.
Briefly,
bifenthrin
residues
are
extracted
with
acetone:
water,
partitioned
into
hexane,
and
purified
using
a
silica­
gel
solid­
phase
extraction
(
SPE)
column.
The
residues
are
then
analyzed
by
GC/
MSD.
The
validated
limit
of
quantitation
(
LOQ)
was
0.05
ppm,
and
the
limit
of
detection
(
LOD)
was
0.01
pm.

Residues
of
bifenthrin
were
<
0.01­
0.10
ppm
in/
on
18
samples
of
dried
beans
harvested
13­
15
DAT,
and
<
LOQ
in/
on
all
12
samples
of
dried
peas
(<
0.01­
0.02
ppm)
harvested
at
14­
15
DAT.
The
average
residues
were
0.043
ppm
for
dried
beans
and
0.025
ppm
for
dried
peas.
Residue
decline
could
not
be
determined
for
dried
beans,
as
residues
in
all
samples
from
the
decline
trial
were
<
LOD.
However,
residues
in
dried
peas,
although
low
( 
0.02
ppm),
did
show
decline
at
longer
post­
treatment
intervals.
Bifenthrin/
128825/
IR­
4
DACO
7.4.1/
7.4.2/
OPPTS
860.1500/
OECD
IIA
6.3.1,
6.3.2,
6.3.3
and
IIIA
8.3.1,
8.3.2,
8.3.3
Crop
Field
Trial 
Dried
Beans
and
Peas
DP#:
310089/
MRID#:
45642701
Page
2
of
8
Residues
of
sulfentrazone
(
PC
Code129081)
and
its
metabolites
were
reported
in
this
MRID
but
were
not
reviewed
in
this
DER.

STUDY/
WAIVER
ACCEPTABILITY/
DEFICIENCIES/
CLARIFICATIONS:

Under
the
conditions
and
parameters
used
in
the
study,
the
dried
bean
and
dried
pea
field
trial
residue
data
are
classified
as
scientifically
acceptable.
The
acceptability
of
this
study
for
regulatory
purposes
is
addressed
in
the
forthcoming
U.
S.
EPA
Residue
Chemistry
Summary
Document
[
DP#:
310089].

COMPLIANCE:

Signed
and
dated
Good
Laboratory
Practice
(
GLP),
Quality
Assurance,
and
Data
Confidentiality
statements
were
provided.
The
study
author
noted
numerous
minor
deviations
from
GLP
compliance
at
several
trial
sites
pertaining
to
collection
of
data
on
weather,
agricultural
practices,
maintenance
fertilizers
and
pesticides,
raw
data
collection.
However,
none
of
these
deviations
substantially
impacts
the
validity
of
the
study.

A.
BACKGROUND
INFORMATION
Bifenthrin
is
a
non­
systemic
insecticide/
miticide
in
the
class
of
synthetic
pyrethroids.
Bifenthrin
is
formulated
as
a
2.0
lb/
gal
EC
and
is
marketed
by
FMC
Corporation
as
Capture
®
2
EC
(
EPA
Reg.
No.
279­
3069).

TABLE
A.
1.
Nomenclature
of
Bifenthrin.

Compound
O
O
Cl
F
3
C
CH
3
CH
3
C
H
3
Common
name
Bifenthrin
Company
experimental
names
Capture
®
2
EC
IUPAC
name
2­
methylbiphenyl­
3­
ylmethyl(
Z)­(
1RS,
3RS)­
3­(
2­
chloro­
3,3,3­
trifluoroprop­
1­
enyl)­
2,2dimethylcyclopropanecarboxylate
or
2­
methylbiphenyl­
3­
ylmethyl(
Z)­(
1RS)­
cis­
3­(
2­
chloro­
3,3,3­
trifluoroprop­
1­
enyl)­
2,2dimethylcyclopropanecarboxylate
CAS
name
rel­
2­
methyl(
1,1'­
biphenyl)­
3­
yl)
methyl(
1R,
3R)­
3­((
1Z)­
2­
chloro­
3,3,3­
trifluoro­
1­
propenyl)­
2,2­
dimethylcyclopropanecarboxylate
CAS
#
82657­
04­
03
End­
use
products/
EP
2.0
lb/
gal
EC
(
EPA
Reg.
No.
279­
3069)
Bifenthrin/
128825/
IR­
4
DACO
7.4.1/
7.4.2/
OPPTS
860.1500/
OECD
IIA
6.3.1,
6.3.2,
6.3.3
and
IIIA
8.3.1,
8.3.2,
8.3.3
Crop
Field
Trial 
Dried
Beans
and
Peas
DP#:
310089/
MRID#:
45642701
Page
3
of
8
TABLE
A.
2.
Physicochemical
Properties
of
the
Technical
Grade
Bifenthrin.

Parameter
Value
Reference
Melting
point/
range
68­
70.6
°
C
pH
NA
Density
at
24
°
C
1.26
g/
mL
Water
solubility
<
0.1
Fg/
L
Solvent
solubility
(
g/
100
mL)
8.9
in
heptane
and
methanol
125
in
acetone,
chloroform,
ether,
methylene
chloride,
and
toluene
Vapor
pressure
(
Pa)
at
25
°
C
2.41
x
10­
5
Dissociation
constant
(
pKa)
NA
Octanol/
water
partition
coefficient)
Kow
>
1
x
10
6
UV/
visible
absorption
spectrum
NA
Product
Chemistry
Chapter
of
the
Tolerance
Reassessment
Eligibility
Decision
(
TRED)

B.
EXPERIMENTAL
DESIGN
B.
1.
Study
Site
Information
Dried
beans
and
peas
were
grown
and
maintained
at
each
trial
site
using
typical
agricultural
practices
for
the
respective
geographical
regions
(
Table
B.
1.1).
Rainfall,
irrigation
data,
and
minimum
and
maximum
average
monthly
temperatures
were
reported
for
some
of
the
trial
sites,
but
most
sites
just
reported
general
weather
observations.
Compared
to
10­
year
average
data,
variations
from
average
precipitation
and
air
temperature
were
reported
at
several
sites,
but
no
extreme
weather
conditions
were
noted
that
would
adversely
impact
the
field
trial
data.
Information
was
also
provided
on
maintenance
chemicals
and
other
pesticides
used
at
each
site.

TABLE
B.
1.1.
Trial
Site
Conditions.
Soil
characteristics1
Trial
Identification
(
City,
State;
Year)
Type
%
OM
pH
CEC
(
meq/
g)
Dried
Beans
Fitchburg,
WI;
2001
Silt
Loam
2.8
5.5
NR
Geneva,
MN;
2001
Clay
Loam
5.2
6.4
NR
Carlyle,
IL;
2001
Silt
Loam
NR
NR
NR
Walworth,
WI;
2001
Silt
Loam
NR
NR
NR
Velva,
ND;
2001
Loam
NR
NR
NR
Eaton,
CO;
2001
Sandy
Clay
Loam
NR
NR
NR
Wellington,
CO;
2001
Sandy
Loam
NR
NR
NR
Live
Oak,
CA;
2001
Subaco
NR
NR
NR
Rupert,
ID;
2001
NR
NR
NR
NR
Dried
Peas
Wahpeton,
ND;
2001
Silty
Clay
Loam
NR
NR
NR
Jerome,
ID;
2001
Loam
1.4
7.4
NR
Jerome,
ID;
2001
Silt
Loam
NR
NR
NR
Parkdale,
OR;
2001
Loam
NR
NR
NR
Walla
Walla,
WA;
2001
Silt
Loam
2.3
7.2
NR
Moses
Lake,
WA;
2001
Silt
Loam
NR
NR
NR
Bifenthrin/
128825/
IR­
4
DACO
7.4.1/
7.4.2/
OPPTS
860.1500/
OECD
IIA
6.3.1,
6.3.2,
6.3.3
and
IIIA
8.3.1,
8.3.2,
8.3.3
Crop
Field
Trial 
Dried
Beans
and
Peas
DP#:
310089/
MRID#:
45642701
Page
4
of
8
1
OM
=
Organic
matter,
CEC
=
Cation­
exchange
capacity.
These
parameters
are
optional
except
in
cases
where
their
value
affects
the
use
pattern
for
the
chemical.
NR
=
Not
reported
TABLE
B.
1.2.
Study
Use
Pattern.
Application
Location
(
City,
State;
Year)
Trial
ID
EP1
Method;
Timing
Volume
(
GPA)
Single
Rate
(
lb
ai/
A)
RTI2
(
days)
Total
Rate
(
lb
ai/
A)
Tank
Mix/
Adjuvants
Dried
Beans
10.4
0.1
­­­
9.9
0.1
29
Fitchburg,
WI;
2001
01
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
5­
6
node
stage,
and
at
pod
fill
and
early
maturity
9.9
0.1
22
0.3
None
9.8
0.1
­­­
10.6
0.1
44
Geneva,
MN;
2001
02
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
V2
stage,
and
at
pod
fill
and
early
maturity
10.0
0.1
27
0.3
None
10
0.1
­­­
10
0.1
34
Carlyle,
IL;
2001
03
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
4­
5
node
stage,
and
at
pod
fill
and
early
maturity
10
0.1
31
0.3
None
10.2
0.1
­­­
10.1
0.1
27
Walworth,
WI;
2001
04
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
3rd
node
stage,
and
at
pod
fill
and
early
maturity
10.2
0.1
29
0.3
None
10
0.1
­­­
10
0.1
35
Velva,
ND;
2001
05
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
2nd
node
stage,
and
bloom
and
early
maturity
10
0.1
33
0.3
None
10.1
0.1
­­­
10.2
0.1
26
Eaton,
CO;
2001
06
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
3­
4
node
stage,
and
at
blooming,
and
early
maturity
10.2
0.1
28
0.3
None
10.0
0.1
­­­
10.1
0.1
23
Wellington;
CO,
2001
07
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
3­
4
node
stage,
and
bloom
and
early
maturity
10.2
0.1
23
0.3
None
10.0
0.1
­­­
10.0
0.1
10
Live
Oak,
CA;
2001
08
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
5
node
stage,
and
at
pod
fill
and
early
maturity
10.0
0.1
10
0.3
None
10.0
0.1
­­­
9.8
0.1
23
Rupert,
ID;
2001
09
2
lb/
gal
EC
Broadcast
Foliar;
beginning
at
2­
5
node
stage,
and
at
bloom
and
early
maturity
9.4
0.1
22
0.3
None
Dried
Peas
9.9
0.1
­­­
Wahpeton,
ND;
2001
10
2
lb/
gal
EC
Broadcast
Foliar;
late
season
21
and
14
days
prior
to
harvest
10.0
0.1
7
0.2
None
10.3
0.1
­­­
Jerome,
ID;
2001
11
2
lb/
gal
EC
Broadcast
Foliar;
late
season
21
and
14
days
prior
to
harvest
10.2
0.1
7
0.2
None
10.6
0.1
­­­
Jerome,
ID;
2001
12
2
lb/
gal
EC
Broadcast
Foliar;
late
season
21
and
14
days
prior
to
harvest
10.5
0.1
6
0.2
None
11.0
0.1
­­­
Parkdale,
OR;
2001
13
2
lb/
gal
EC
Broadcast
Foliar;
late
season
21
and
14
days
prior
to
harvest
10.0
0.1
7
0.2
None
10.0
0.1
­­
Walla
Walla;
WA,
2001
14
2
lb/
gal
EC
Broadcast
Foliar;
late
season
21
and
14
days
prior
to
harvest
10.0
0.1
7
0.2
None
10.0
0.1
­­­
Moses
Lake;
WA,
2001
15
2
lb/
gal
EC
Broadcast
Foliar;
late
season
21
and
14
days
prior
to
harvest
10.0
0.1
7
0.2
None
1
EP
=
End­
use
Product
2
RTI
=
Retreatment
Interval
Bifenthrin/
128825/
IR­
4
DACO
7.4.1/
7.4.2/
OPPTS
860.1500/
OECD
IIA
6.3.1,
6.3.2,
6.3.3
and
IIIA
8.3.1,
8.3.2,
8.3.3
Crop
Field
Trial 
Dried
Beans
and
Peas
DP#:
310089/
MRID#:
45642701
Page
5
of
8
TABLE
B.
1.3.1
Trial
Numbers
and
Geographical
Locations.

Submitted
Requested
in
US2
NAFTA
Growing
Region1
Dried
Beans
Dried
Peas
Dried
Beans
Dried
Peas
5
4
1
4
­­­

7
1
­­­
1
­­­

8
1
­­­
1
­­­

9
1
­­­
1
­­­

10
1
­­­
1
­­­

11
1
5
1
5
Total
9
6
9
5
1
Regions
13­
21
and
1A,
5A,
5B,
and
7A
were
not
included
as
the
use
is
for
the
US
only.
2
Number
of
trials
required
for
a
tolerance
on
the
dried
bean
and
pea,
excluding
soybean,
subgroup
1­
C.

B.
2.
Sample
Handling
and
Preparation
Duplicate
control
and
treated
samples
of
dried
beans
and
peas
( 
2
pounds)
were
harvested
from
each
trial
site
at
commercial
maturity,
13­
15
days
following
the
final
application.
To
examine
residue
decline,
additional
duplicate
samples
were
collected
at
9,
14,
19,
and
27
DAT
in
one
dried
bean
trial
(
WI)
and
at
12,
15,
20,
and
27
in
one
dried
pea
trial
(
ID).
Samples
were
placed
into
frozen
storage
within
2.5
hours
of
sampling.
Samples
were
shipped
frozen
by
ACDS
freezer
truck
to
the
analytical
laboratory,
where
samples
were
stored
at
­
18
°
C
until
extraction
for
analysis.

B.
3.
Analytical
Methodology
Samples
of
dried
beans
and
peas
were
analyzed
for
residues
of
bifenthrin
using
a
GC/
MSD
method
(
FMC
Corporation
Method
P­
2132M).
For
this
method,
residues
were
extracted
with
acetone:
water
(
4:
1,
v/
v),
centrifuged,
and
concentrated
to
remove
the
acetone.
Residues
are
then
diluted
with
water,
partitioned
into
hexane,
and
purified
using
a
silica­
gel
SPE
column
eluted
with
10%
ethyl
acetate/
hexane.
Residues
are
then
concentrated
and
determined
by
GC/
MSD
using
the
m/
z
181
ion
for
quantitation
with
external
standards.

Prior
to
analysis
of
field
trial
samples,
the
method
was
validated
concurrently
using
control
samples
of
dried
beans
and
peas
fortified
with
bifenthrin
at
0.05,
0.1
and
0.2
ppm.

C.
RESULTS
AND
DISCUSSION
The
number
and
geographic
representation
of
the
dried
bean
and
pea
field
trials
are
adequate.
In
the
nine
dried
bean
field
trials,
bifenthrin
(
2
lb
/
gal
EC)
was
applied
as
three
broadcast
foliar
applications
at
0.1
lb
ai/
A/
application,
for
a
total
of
0.3
lb
ai/
A/
season.
The
initial
application
was
made
at
the
2­
to
6­
node
stage,
the
second
application
was
made
at
bloom
through
pod
fill,
and
the
final
application
was
made
at
early
maturity,
~
14
days
prior
to
normal
harvest.
RTIs
for
dried
beans
were
10­
44
days.
In
the
six
dried
pea
field
trials,
bifenthrin
(
2
lb
/
gal
EC)
was
applied
as
two
broadcast
foliar
applications
at
0.1
lb
ai/
A/
application,
at
approximately
21
and
14
days
prior
to
normal
maturity,
for
a
total
of
0.2
lb
ai/
A/
season.
The
RTIs
for
the
dried
pea
trials
were
6­
7
days.
At
commercial
maturity
(~
14­
day
PHI),
a
single
control
and
duplicate
treated
Bifenthrin/
128825/
IR­
4
DACO
7.4.1/
7.4.2/
OPPTS
860.1500/
OECD
IIA
6.3.1,
6.3.2,
6.3.3
and
IIIA
8.3.1,
8.3.2,
8.3.3
Crop
Field
Trial 
Dried
Beans
and
Peas
DP#:
310089/
MRID#:
45642701
Page
6
of
8
samples
of
dried
bean
or
peas
were
collected
from
each
trial.
To
examine
residue
decline,
additional
duplicate
samples
were
collected
at
9,
14,
19,
and
27­
day
PHIs
from
one
dried
bean
trial
and
at
12,
15,
20,
and
27­
day
PHIs
from
one
dried
pea
trial.

The
GC/
MSD
method,
used
to
determine
bifenthrin
residues
in/
on
dried
beans
and
peas,
was
adequately
validated
in
conjunction
with
the
field
sample
analyses.
Method
validation
recoveries
from
control
samples
fortified
at
0.05­
0.20
ppm
were
84­
99%
and
averaged
94
±
6%
(
Table
C.
1.).
The
validated
LOQ
for
residues
of
bifenthrin
was
0.05
ppm
in/
on
dried
beans
and
peas,
and
the
LOD
was
0.01
ppm.
Adequate
sample
calculations
and
example
chromatograms
were
provided.

The
samples
were
stored
frozen
from
collection
to
analysis
for
up
to
two
months
(
Table
C.
2).
Storage
stability
data
are
not
available
for
dried
beans
and
peas;
however,
available
stability
data
indicate
that
bifenthrin
is
stable
for
up
to
12
months
on
corn
matrices
(
Memo,
S.
Levy,
21­
AUG­
2002;
DP#:
283808).
These
data
will
support
the
storage
intervals
and
conditions
of
the
dried
bean
and
dried
pea
field
trials.

TABLE
C.
1.
Summary
of
Concurrent
Recoveries
of
Bifenthrin
from
Dried
Beans
and
Peas.
Analyte
Matrix
Spike
level
(
ppm)
Sample
size
(
n)
Recoveries
(%)
Mean
"
std
dev
(%)
0.05
4
84­
99
91.3
±
7.4
0.1
2
96,
99
97.5
±
2.1
Bifenthrin
Dried
beans
and
peas
0.2
2
95,
99
97
±
2.9
TABLE
C.
2.
Summary
of
Storage
Conditions.
Matrix
Storage
Temperature
(
°
C)
Actual
Storage
Duration
(
months)
Interval
of
Demonstrated
Storage
Stability1
(
months)
Dried
Beans
and
Peas
­
18
°
C
2
12
1
Bifenthrin
TRED,
S.
Levy,
21­
AUG­
2002;
DP#:
283808.

In
the
dried
bean
field
trials,
bifenthrin
residues
were
<
0.01­
0.10
ppm
in/
on
18
samples
harvested
13­
15
DAT
(
Table
C.
3.),
with
6
of
the
18
samples
having
residues
(
0.05­
0.10
ppm)
above
the
LOQ.
In
the
dried
pea
field
trials,
all
12
samples
harvested
at
14­
15
DAT
had
residues
below
the
LOQ
(<
0.01­
0.02
ppm),
with
11
of
the
12
samples
having
residues
above
the
LOD.
The
average
and
highest­
average
field
trial
(
HAFT)
residues
were
0.043
and
0.095
ppm,
respectively,
for
dried
beans,
and
0.025
and
0.05
ppm
for
dried
peas.

All
samples
from
the
dried
bean
samples
harvested
9­
27
DAT
from
the
residue
decline
trial
were
<
LOD;
therefore
residue
declined
could
not
be
determined.
However,
in
the
dried
pea
residue
decline
trial,
residues
in/
on
dried
peas
decreased
from
0.02
ppm
at
12
DAT
to
<
0.01
ppm
by
19
DAT.
TABLE
C.
3.
Residue
Data
from
Dried
Beans
and
Pea
Field
Trials
with
Bifenthrin
(
EC).
Trial
ID
(
City,
State;
Year)
Zone
Crop;
Variety
Commodity
or
Matrix
Total
Rate
(
lb
ai/
A)
PHI
(
days)
Bifenthrin
residues
(
ppm)
Dried
Beans
Fitchburg,
WI,
2001
5
Bean:
Kodiak
Dried
Seed
0.3
13
ND,
(
0.01)
Geneva,
MN,
2001
5
Bean:
Pinto
Dried
Seed
0.3
14
(
0.02),
(
0.03)
Carlyle,
IL,
2001
5
Bean:
Pinto
Field
Dried
Seed
0.3
13
(
0.03),
(
0.03)

Walworth,
WI,
2001
5
Bean,
Pinto
Dried
Seed
0.3
9
ND,
ND
Bifenthrin/
128825/
IR­
4
DACO
7.4.1/
7.4.2/
OPPTS
860.1500/
OECD
IIA
6.3.1,
6.3.2,
6.3.3
and
IIIA
8.3.1,
8.3.2,
8.3.3
Crop
Field
Trial 
Dried
Beans
and
Peas
DP#:
310089/
MRID#:
45642701
Page
7
of
8
TABLE
C.
3.
Residue
Data
from
Dried
Beans
and
Pea
Field
Trials
with
Bifenthrin
(
EC).
Trial
ID
(
City,
State;
Year)
Zone
Crop;
Variety
Commodity
or
Matrix
Total
Rate
(
lb
ai/
A)
PHI
(
days)
Bifenthrin
residues
(
ppm)
14
ND,
ND
19
ND,
ND
Field
27
ND,
ND
Velva,
ND,
2001
7
Bean:
Othello
Dried
Seed
0.3
15
ND,
ND
Eaton,
CO,
2001
8
Bean:
Montrose
Dried
Seed
0.3
14
0.10,
0.09
Wellington,
CO,
2001
9
Bean:
Bill
Z
Dried
Seed
0.3
14
0.07,
0.10
Live
Oak,
CA,
2001
10
Bean:
Kidney
Dried
Seed
0.3
14
0.07,
0.05
Rupert,
ID,
2001
11
Bean:
Othello
Dried
Seed
0.3
15
ND,
ND
Dried
Peas
Wahpeton,
ND,
2001
5
Pea:
Wando
Dried
Seed
0.2
14
(
0.01),
ND
Jerome,
ID
2001
11
Pea:
Talbot
Dried
Seed
0.2
14
(
0.02),
(
0.01)
12
(
0.02),
(
0.02)
15
(
0.02),
(
0.02)
20
ND,
ND
Jerome,
ID
2001
11
Pea:
Talbot
Dried
Seed
0.2
27
ND,
ND
Parkdale,
OR
2001
11
Pea:
Progress
9
Dried
Seed
0.2
14
(
0.01),
(
0.02)
Walla
Walla,
WA,
2001
11
Pea:
Columbian
Dried
Seed
0.2
14
(
0.01),
(
0.02)

Moses
Lake,
WA,
2001
11
Pea:
Caselode
Dried
Seed
0.2
14
(
0.01),
(
0.02)
ND
=
Not
detectible;
(<
0.01
ppm).

TABLE
C.
4.
Summary
of
Residue
Data
from
Dried
Bean
and
Pea
Field
Trials
with
Bifenthrin
(
EC).
Residue
Levels
(
ppm)
Commodity
Total
Applic.
Rate
(
lb
ai/
A)
PHI
(
days)
n
Min.
Max.
HAFT1,
2
Median
Mean
Std.
Dev.

Dried
Beans
0.3
13­
15
18
0.05
0.10
0.095
0.025
0.043
0.029
Dried
Peas
0.2
14­
15
12
0.05
0.05
0.05
0.025
0.025
0
1
HAFT
=
Highest
Average
Field
Trial.
2
In
cases
where
residue
levels
were
<
LOQ,
½
LOQ
(
0.025
ppm)
was
used
to
calculate
the
median,
mean
and
standard
deviation.

D.
CONCLUSION
The
dried
bean
and
dried
pea
field
trial
data
are
adequate
and
support
the
use
of
up
to
three
(
bean)
or
two
(
pea)
foliar
applications
of
bifenthrin
(
EC)
at
0.1
lb
ai/
A/
application,
for
a
maximum
seasonal
rate
of
0.3
or
0.2
lb
ai/
A
on
dried
beans
and
peas,
respectively.
Bifenthrin/
128825/
IR­
4
DACO
7.4.1/
7.4.2/
OPPTS
860.1500/
OECD
IIA
6.3.1,
6.3.2,
6.3.3
and
IIIA
8.3.1,
8.3.2,
8.3.3
Crop
Field
Trial 
Dried
Beans
and
Peas
DP#:
310089/
MRID#:
45642701
Page
8
of
8
E.
REFERENCES
DP#:
283808
Subject:
Bifenthrin.
Residue
and
Product
Chemistry
Considerations
for
the
Tolerance
Reassessment
Eligibility
Decision
(
TRED)
From:
S.
Levy
To:
T.
Myers
Dated:
21­
AUG­
2002
MRID(
s):
None
F.
DOCUMENT
TRACKING
RDI:
RAB1
Chemists
(
16­
NOV­
2005)
Petition#:
2E6423
DP#:
310089
PC
Code:
128825
Template
Version
September
2003
