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Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
Product
Company
Active ingredient Formulation Container size
MCPA 600 ester (PCP# 27802)
IPCO
600
g/L
EC
2
x 10 L jugs
MCPA 600 ester (PCP# 27803)
Nufarm
600
g/L
EC
2
x 10 L jugs
MCPA 600 ester (PCP# 27804)
Loveland Products Canada
600
g/L
EC
2
x 10 L jugs
MCPA 600 ester (PCP# 29001)
Viterra
600
g/L
EC
2
x 10 L jugs,
115
L
MCPA 400 Potassium salt (PCP# 20305)
IPCO
400
g/L
Solution
2
x 10 L jugs
MCPA 400 Potassium salt (PCP# 14188)
Loveland Products Canada
400
g/L
Solution
2
x 10 L jugs
MCPA 300 Sodium salt (PCP# 20306)
IPCO
300
g/L
Solution
2
x 10 L jugs
MCPA 300 Sodium salt (PCP# 14718)
Nufarm
300
g/L
Solution
2
x 10 L, 20 L jugs
MCPA 300 Sodium salt (PCP# 9858)
Loveland Products Canada
300
g/L
Solution
2
x 10 L jugs
Crops, Staging and Rates
Crop
Stage
Rate
Wheat (spring and durum),
barley, spring rye
From the 3-leaf expanded to the
early flag-leaf (shot blade) stage
500
amine: 0.45 L/acre
400
K salt: 0.53 L/acre
600
amine or ester: 0.42 L/acre
300
Na salt: 0.81 L/acre
Oats
From the 3 leaf to early flag leaf
500
amine or ester: 0.45 L/acre
400
K salt: 0.53 L/acre
600
amine or ester: 0.36 L/acre
300
Na salt: 0.81 L/acre
Winter wheat (WW) and
fall rye (FR)
Spring: from the time growth
commences until flag leaf stage
500
amine: 0.45 L/acre
400
K salt: WW 0.61 L/acre,
600
ester: 0.42 L/acre
FR: 0.40 L/acre
300
Na salt: 0.81 L/acre
Flax (excluding solin)
5
cm in height to pre-bud stage.
Apply at 5 - 10 cm in height for
maximum crop tolerance
500
amine: 0.4 L/acre
400
K salt: 0.65 L/acre
600
amine: 0.34 L/acre;
300
Na salt: 0.71 L/acre
600
ester: 0.28 L/acre
Corn
As a broadcast spray up to 15 - 18 cm
tall or 6-leaf stage. Directed spray
using drop nozzles: up to 3 wks.
before tasseling
500
amine or ester: 0.45 L/acre
400
K salt: 0.51 L/acre
600
amine only: 0.37 L/acre
300
Na salt: 0.61 L/acre
Peas (field and canning)
Vine 10 - 18 cm long. For short
stature determinate varieties apply
at the early stage within this range
500
amine:
400
K salt: not registered
0.135 - 0.22
L/acre
300
Na salt: 0.36 L/acre
600
amine only: 0.17 L/acre
Forages (established)
Apply in the spring up to the shot
blade stage
500
amine only: 0.45 L/acre
Seedling forage (not for
grass production)
From the 3 leaf to early flag leaf
500
amine only: 0.45 L/acre
Pasture, rangeland, turf
Spring or fall
500
amine or ester: 1.41 L/acre
600
amine: 1.41 L/acre;
600
ester: 1.13 L/acre
Red clover (seedling and
established)
Seedling: 1 - 3 trifoliate stage
Established: breaking of dormancy
in the spring up to 7. 5 cm
500
amine: 0.23 L/acre
400
K salt: not registered
600
amine only: 0.19 L/acre
300
Na salt: 0.36 L/acre
Cereals underseeded to
alfalfa (not Flemish)
Apply when alfalfa is in the 1 - 3
trifoliate stage
500
amine: 0.23 L/acre
400
K salt: not registered
600
amine only: 0.19 L/acre
300
Na salt: 0.4. L/acre
Cereals underseeded to
alsike, ladino and red clover
Apply when clover is in the 1 - 3
trifoliate stage
500
amine: 0.28 L/acre
400
K salt: not registered
600
amine or ester: not registered 300 Na salt: 0.4. L/acre
Fairways and lawns
Apply early in the summer
500
amine: 0.4 - 1.0 L/acre
400
K salt: not registered
600
amine or ester: not registered 300 Na salt: 0.4. L/acre
Weeds, Rates and Staging
Apply when weeds are in 2 - 4 leaf stage. Use lower rate when weeds are small and growing conditions are good; use
higher rate when weeds are in dry or cool conditions or under heavy infestation.
MCPA (cont’d)