Quantitative
Usage
Analysis
for
Linuron
Case
Number:
0047
PC
Code:
35506
Date:
October
22,
2001
Analyst:
Frank
Hernandez
Based
on
available
usage
information
from
pesticide
surveys
for
the
years
of
1992
through
2000,
total
annual
domestic
usage
of
linuron
averaged
approximately
over
four
hundred
thousand
pounds
of
active
ingredient
(a.
i.)
for
just
under
four
hundred
thousand
acres
treated.
Linuron
is
a
herbicide
with
its
largest
markets
in
terms
of
total
pounds
of
active
ingredient
allocated
to
carrots
(35%),
potatoes
(20%),
and
cotton
(17%).
Most
of
the
usage
is
in
IL,
IN,
MD,
MI,
OH,
and
WA.
Crops
with
a
high
percentage
of
the
total
U.
S.
planted
acres
treated
include
carrots
(75%),
celery
(24%),
asparagus
(20%),
and
potatoes
(7%).
Crops
with
less
than
1
percent
of
the
crop
treated
include
alfalfa,
barley,
dry
beans,
corn,
cotton,
lettuce,
melons,
peanuts,
rice,
rye,
sorghum,
soybeans,
sweet
corn,
and
wheat.

Site
Acres
Grown
(000)
Acres
Treated
(000)
%
of
Crop
Treated
LB
AI
Applied
(000)
Average
Application
Rate
States
of
Most
Usage
Wtd
Avg
Est
Max
Wtd
Avg
Est
Max
Wtd
Avg
Est
Max
lb
ai/
A/
yr
#appl
/
yr
lb
ai/
A/
appl
(%
of
total
lb
ai
used
on
this
site)

Alfalfa
23,701
1
4
0.00
0.02
1
2
0.7
1.0
0.7
MO
KS
CA
100%

Asparagus
90
18
30
20.39
33.29
18
36
1.0
1.0
1.0
CA
WA
85%

Barley
7,326
0
0
0.00
0.00
0
0
0.5
1.0
0.5
ID
MT
ND
85%

Beans/
Peas,
Dry
2,190
3
12
0.14
0.54
2
10
0.8
2.5
0.3
OH
WA
88%

Beans/
Peas,
Green
709
1
2
0.10
0.28
0
1
0.4
1.0
0.4
MN
MD
80%

Carrots
104
79
104
75.31
100.00
145
210
1.8
1.0
1.8
CA
MI
FL
WA
TX
83%

Celery
34
8
11
23.67
32.54
4
8
0.5
1.0
0.5
MI
CA
TX
84%

Corn
72,425
7
10
0.01
0.01
15
29
2.1
1.3
1.7
KY
NC
OH
IN
PA
MI
58%

Cotton
12967
88
233
0.68
1.80
72
123
0.8
1.0
0.8
MS
AR
SC
NC
LA
TN
83%
Site
Acres
Grown
(000)
Acres
Treated
(000)
%
of
Crop
Treated
LB
AI
Applied
(000)
Average
Application
Rate
States
of
Most
Usage
Wtd
Avg
Est
Max
Wtd
Avg
Est
Max
Wtd
Avg
Est
Max
lb
ai/
A/
yr
#appl
/
yr
lb
ai/
A/
appl
(%
of
total
lb
ai
used
on
this
site)

Lettuce
274
2
8
0.61
2.98
1
5
0.6
1.0
0.6
CA
FL
86%

Melons
375
1
2
0.25
0.5051
1
2
1.0
1.0
1.0
TX
89%

Oats/
Rye
6,184
0
1
0.01
0.01
0
1
0.7
1.0
0.7
ME
MI
93%

Parsley
5
0
0
3.00
6.00
0
2
2.7
3.5
0.8
CA
60%

Parsnips
4
0
0
1.55
2.33
0
0
1.0
1.0
1.0
CA
FL
70%

Peanuts
1,582
0
1
0.03
0.06
1
1
1.1
1.0
1.1
SC
FL
100%

Potatoes
1,433
100
158
6.98
11.03
85
180
0.8
1.0
0.8
ND
MI
RI
ME
NY
MN
71%

Rice
2,992
5
20
0.18
0.66
3
13
0.5
1.1
0.5
TX
CA
LA
91%

Rye
4,364
0
1
0.01
0.02
0
1
0.7
1.0
0.7
ME
MI
93%

Sorghum
11,140
33
107
0.30
0.96
13
52
0.4
1.0
0.4
TX
KS
80%

Soybeans
63,141
25
41
0.04
0.07
53
100
2.1
1.1
2.0
MI
OH
IN
MD
IL
VA
67%

Sweet
Corn
732
3
10
0.47
1.37
4
8
1.19
1.6
0.8
PA
MA
OH
81%

Wheat,
Spring
21,311
0
2
0.00
0.01
0
1
0.5
1.0
0.5
MN
100%

Wheat,
Winter
44,907
7
13
0.01
0.03
3
6
0.4
2.0
0.2
MD
MS
DE
AL
WA
TN
78%

Total
383
577
421
605
COLUMN
HEADINGS
Wtd
Avg
=
Weighted
average­­
the
most
recent
years
and
more
reliable
data
are
weighted
more
heavily.
Est
Max
=
Estimated
maximum,
which
is
estimated
from
available
data.
Average
application
rates
are
calculated
from
the
weighted
averages.
NOTES
ON
TABLE
DATA
Usage
data
primarily
covers
1992
­
2000.
Calculations
of
the
above
numbers
may
not
appear
to
agree
because
they
are
displayed
as
rounded
to
the
nearest
1000
for
acres
treated
or
lb.
a.
i.
(therefore
0
=
<
500),
and
to
two
decimal
percentage
points
for
%
of
crop
treated.

Other/
Crop
Groups
Melons
include
cantaloupe,
watermelon,
honeydew,
muskmelon,
and
winter
melon.

SOURCES:
EPA
data,
USDA,
and
National
Center
for
Food
and
Agricultural
Policy.

cc:
JSPunzi
(RRB2),
Linuron
Reg.
Std.
File,
Linuron
SF,
RF,
LAN.
RD/
I:
RRB2
Chem
Review
Team
(12/
10/
2001),
Alan
Nielsen
(12/
30/
2001),
ChemSac
(12/
12/
2001),
DeSac
(12/
18/
2001).
7509C:
RRB2:
John
S.
Punzi:
CM2:
Rm
804E:
703­
305­
7727:
12/
20/
2001.
