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Registered Crop Input Products / WeedAway® MCPA SODIUM SALT 300

WeedAway® MCPA SODIUM SALT 300

PCP #21933 · Interprovincial Cooperative Limited · Herbicide

Group 4

Group 4 liquid herbicide containing MCPA sodium salt for broadleaf weed control in cereals, flax, corn, peas, and cereals underseeded to legumes. Controls susceptible weeds including mustards, kochia, lambsquarters, and provides top growth control of harder to kill weeds like Canada thistle and perennial sow thistle.

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Registered uses (18)

Crop × pest × application rate combinations from the official label. Rates converted to per-acre. Always confirm against the official label PDF before applying.

CropTargetRatePHI
CerealsHarder to kill weeds (Annual Sow Thistle, Bluebur, Blue Lettuce, Canada Thistle, Peppergrass, Curled Dock, Dog Mustard, Goosefoot, Hempnettle, Redroot Pigweed, Russian Thistle, Perennial Sow Thistle, Leafy Spurge)0.809–1.11 L/acre–
CerealsSusceptible weeds (Burdock, Cocklebur, Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.506–0.809 L/acre–
CerealsSusceptible weeds (Mustards, Ragweed, Flixweed, Kochia, Lamb's quarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.405 L/acre–
CornSusceptible weeds (Burdock, Cocklebur, Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.405–0.607 L/acre15 d
FlaxHarder to kill weeds (Annual Sow Thistle, Bluebur, Blue Lettuce, Canada Thistle, Peppergrass, Curled Dock, Dog Mustard, Goosefoot, Hempnettle, Redroot Pigweed, Russian Thistle, Perennial Sow Thistle, Leafy Spurge)0.809–1.11 L/acre–
FlaxSusceptible weeds (Burdock, Cocklebur, Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.506–0.809 L/acre–
OatsHarder to kill weeds (Annual Sow Thistle, Bluebur, Blue Lettuce, Canada Thistle, Peppergrass, Curled Dock, Dog Mustard, Goosefoot, Hempnettle, Redroot Pigweed, Russian Thistle, Perennial Sow Thistle, Leafy Spurge)0.809–1.11 L/acre–
OatsSusceptible weeds (Burdock, Cocklebur, Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.506–0.809 L/acre–
PeaHarder to kill weeds (Annual Sow Thistle, Bluebur, Blue Lettuce, Canada Thistle, Peppergrass, Curled Dock, Dog Mustard, Goosefoot, Hempnettle, Redroot Pigweed, Russian Thistle, Perennial Sow Thistle, Leafy Spurge)0.506 L/acre–
PeaSusceptible weeds (Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.405 L/acre–
RyeHarder to kill weeds (Annual Sow Thistle, Bluebur, Blue Lettuce, Canada Thistle, Peppergrass, Curled Dock, Dog Mustard, Goosefoot, Hempnettle, Redroot Pigweed, Russian Thistle, Perennial Sow Thistle, Leafy Spurge)0.809–1.11 L/acre–
RyeHarder to kill weeds (Annual Sow Thistle, Bluebur, Blue Lettuce, Canada Thistle, Peppergrass, Curled Dock, Dog Mustard, Goosefoot, Hempnettle, Redroot Pigweed, Russian Thistle, Perennial Sow Thistle, Leafy Spurge)0.809–1.11 L/acre–
RyeSusceptible weeds (Burdock, Cocklebur, Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.506–0.809 L/acre–
RyeSusceptible weeds (Burdock, Cocklebur, Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.506–0.809 L/acre–
WheatHarder to kill weeds (Annual Sow Thistle, Bluebur, Blue Lettuce, Canada Thistle, Peppergrass, Curled Dock, Dog Mustard, Goosefoot, Hempnettle, Redroot Pigweed, Russian Thistle, Perennial Sow Thistle, Leafy Spurge)0.809–1.11 L/acre–
WheatHarder to kill weeds (Annual Sow Thistle, Bluebur, Blue Lettuce, Canada Thistle, Peppergrass, Curled Dock, Dog Mustard, Goosefoot, Hempnettle, Redroot Pigweed, Russian Thistle, Perennial Sow Thistle, Leafy Spurge)0.809–1.11 L/acre–
WheatSusceptible weeds (Burdock, Cocklebur, Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.506–0.809 L/acre–
WheatSusceptible weeds (Burdock, Cocklebur, Mustards, Ragweed, Flixweed, Kochia, Lambsquarters, Russian Pigweed, Shepherd's Purse, Stinkweed)0.506–0.809 L/acre–

About this content. This page presents the official PRD label as published by Health Canada's Pesticides Regulatory Directorate (formerly the Pest Management Regulatory Agency), the source of record. Always read the official label and consult your provincial pesticide- application authority before use. Report an error.

Quick facts

Active ingredients
mcpa 300 g/L
Group 4 Herbicide
Mode of action: Synthetic auxin (HRAC 4, Phenoxy)
CAS 94-74-6
Formulation
solution
Resistance group
Group 4
First registered
1991-04-26
Registration expiry
2026-12-31