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IPCO Warrant Herbicide
PCP #35378 · Interprovincial Cooperative Limited · Herbicide
Group 4
Group 4 herbicide containing clopyralid for control of broadleaf weeds including Canada thistle, scentless chamomile, common groundsel, wild buckwheat, perennial sow-thistle, volunteer alfalfa, vetch, and ragweed in cereals, oilseeds, corn, forage grasses, vegetables, fruits, berries, and non-crop areas.
Registered uses (65)
Crop × pest × application rate combinations from the official label. Rates converted to per-acre. Always confirm against the official label PDF before applying.
| Crop | Target | Rate | PHI |
|---|---|---|---|
| Apple | Perennial vetch species and labelled weeds | 0.138 L/acre | 30 d |
| Apple | perennial vetch species and labelled weeds | 0.138 L/acre | 30 d |
| Barley | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.101–0.138 L/acre | — |
| Barley | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.101–0.138 L/acre | — |
| Beet | Labelled weeds | 0.101–0.138 L/acre | 30 d |
| Beet | labelled weeds | 0.101–0.138 L/acre | 30 d |
| Blueberry | red and white clover | 0.202 L/acre | 45 d |
| Blueberry | red and white clover | 0.202 L/acre | 45 d |
| Blueberry | tufted vetch | 0.101 L/acre | 300 d |
| Blueberry | tufted vetch | 0.101 L/acre | 304 d |
| Blueberry | vetch | 0.101 L/acre | 45 d |
| Blueberry | vetch | 0.101 L/acre | 45 d |
| Cabbage | ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.138 L/acre | 30 d |
| Canary Seed | Canada thistle (6-8 weeks control) | 0.069 L/acre | 60 d |
| Canary Seed | Canada thistle (6-8 weeks control) | 0.069 L/acre | 60 d |
| Canola | Canada thistle, scentless chamomile, common groundsel, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.101–0.202 L/acre | — |
| Canola | Canada thistle, scentless chamomile, common groundsel, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.101–0.202 L/acre | — |
| Canola | Canada thistle, scentless chamomile, wild buckwheat, perennial sow-thistle (top growth), common groundsel | 0.101–0.138 L/acre | — |
| Canola | Canada thistle, scentless chamomile, wild buckwheat, perennial sow-thistle (top growth), common groundsel | 0.101–0.138 L/acre | — |
| Christmas Trees | vetch (Vicia spp.) | 0.101 L/acre | — |
| Christmas Trees | vetch (Vicia spp.) | 0.101 L/acre | — |
| Conifers | Labelled weeds | 0.101–0.138 L/acre | — |
| Conifers | labelled weeds | 0.101–0.138 L/acre | — |
| Corn | Canada thistle (top growth), vetch (Vicia spp.), alsike clover | 0.069–0.101 L/acre | — |
| Corn | Canada thistle (top growth), vetch (Vicia spp.), alsike clover | 0.101 L/acre | — |
| Cranberry | vetch and labelled weeds | 0.101–0.202 L/acre | 60 d |
| Cranberry | vetch, and labelled weeds | 0.101–0.202 L/acre | 60 d |
| Flax | Canada thistle, common groundsel, scentless chamomile, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.138–0.202 L/acre | — |
| Flax | Canada thistle, common groundsel, scentless chamomile, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.138–0.202 L/acre | — |
| Forage Grasses | Weeds on label plus alsike clover | 0.101–0.202 L/acre | — |
| Grass | weeds listed on label plus alsike clover | 0.101–0.202 L/acre | — |
| Kohlrabi | ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.138 L/acre | 30 d |
| Non-Crop | Broadleaf weeds; Canada thistle | 0.101–0.202 L/acre | — |
| Non-Crop | Spotted and diffuse knapweed | 0.17 L/acre | — |
| Non-Crop | labelled weeds | 0.101–0.202 L/acre | — |
| Non-Crop | spotted and diffuse knapweed | 0.17 L/acre | — |
| Oats | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.101–0.138 L/acre | — |
| Oats | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.101–0.138 L/acre | — |
| Onion | Labelled weeds | 0.17–0.227 L/acre | 45 d |
| Onion | labelled weeds | 0.17–0.227 L/acre | 45 d |
| Poplar | Canada thistle and other labelled weeds | 0.202 L/acre | — |
| Poplar | Canada thistle and other labelled weeds | 0.202 L/acre | — |
| Rangeland | Weeds on label plus alsike clover | 0.101–0.202 L/acre | — |
| Rangeland | weeds on label plus alsike clover | 0.101–0.202 L/acre | — |
| Rutabaga | common ragweed | 0.138 L/acre | 83 d |
| Rutabaga | common ragweed | 0.138 L/acre | 83 d |
| Saskatoon Berry | Canada thistle | 0.227 L/acre | 45 d |
| Saskatoon Berry | Canada thistle | 0.227 L/acre | 45 d |
| Shelterbelt Species | Canada thistle | 0.202 L/acre | — |
| Shelterbelt Trees | Canada thistle | 0.202 L/acre | — |
| Spinach | common ragweed, common groundsel | 0.07 L/acre | 21 d |
| Spinach | common ragweed, common groundsel | 0.07 L/acre | 21 d |
| Stone Fruit | Broadleaf weeds including vetch | 0.101–0.202 L/acre | 30 d |
| Stone Fruit | broadleaf weeds including vetch | 0.101–0.202 L/acre | 30 d |
| Strawberry | tufted vetch, Canada thistle; suppression of sheep sorrel and ox-eye daisy | 0.138–0.202 L/acre | — |
| Strawberry | tufted vetch, Canada thistle; suppression of sheep sorrel and ox-eye daisy | 0.138–0.202 L/acre | — |
| Sugar Beet | Canada thistle | 0.138–0.202 L/acre | 90 d |
| Sugar Beet | Canada thistle | 0.138–0.202 L/acre | 90 d |
| Summerfallow | Canada thistle, scentless chamomile, common groundsel, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.202 L/acre | — |
| Summerfallow | Canada thistle, scentless chamomile, common groundsel, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.202 L/acre | — |
| Turnip | Labelled weeds | 0.101–0.138 L/acre | 30 d |
| Turnip | labelled weeds | 0.101–0.138 L/acre | 30 d |
| Wheat | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.101–0.138 L/acre | — |
| Wheat | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.101–0.138 L/acre | — |
| Wheat | Labelled weeds; giant ragweed (emergence to five leaf stage) | 0.101–0.138 L/acre | 60 d |
About this content. This page presents the official PMRA label as published by Health Canada's 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.