PCP #35352 · Lier Chemical Co., LTD · Herbicide
Group 4 herbicide containing clopyralid for control of broadleaf weeds including Canada thistle, vetch, ragweed, and other susceptible species in cereals, oilseeds, forage crops, vegetables, fruits, berries, and non-crop areas.
Crop × pest × application rate combinations from the official label. Rates converted to per-acre. PHI is the pre-harvest interval; REI is the restricted-entry interval. Always confirm against the official label PDF before applying.
| Crop | Target | Rate | PHI | REI |
|---|---|---|---|---|
| Apple | Perennial vetch species and labelled weeds | 0.227 L/acre | 30 d | – |
| Barley | Canada thistle, common groundsel, perennial sow-thistle (top growth control), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.17–0.227 L/acre | – | 12 d |
| Barley | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.17–0.227 L/acre | – | – |
| Beet | Labelled weeds | 0.17–0.227 L/acre | 30 d | – |
| Beet | Labelled weeds | 0.17–0.227 L/acre | 30 d | 12 d |
| Blueberry | Red and white clover | 0.336 L/acre | 45 d | – |
| Blueberry | Tufted vetch | 0.17 L/acre | 300 d | – |
| Blueberry | Vetch | 0.17 L/acre | 45 d | – |
| Blueberry | tufted vetch | 0.17 L/acre | 304 d | 12 d |
| Blueberry | vetch, red and white clover | 0.17–0.336 L/acre | 45 d | 12 d |
| Broccoli | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | – |
| Brussels Sprouts | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre |
| 30 d |
| – |
| Cabbage | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | – |
| Cabbage | ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | 12 d |
| Canola | Canada thistle, scentless chamomile, common groundsel, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.17–0.336 L/acre | – | – |
| Canola | Canada thistle, scentless chamomile, wild buckwheat, perennial sow-thistle (top growth), common groundsel | 0.17–0.227 L/acre | – | – |
| Canola | Canada thistle, scentless chamomile, wild buckwheat, perennial sow-thistle (top growth), common groundsel | 0.17–0.227 L/acre | – | 12 d |
| Cauliflower | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | – |
| Chinese Broccoli | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | – |
| Chinese Radish | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | – |
| Christmas Trees | Vetch (Vicia spp.) | 0.17 L/acre | – | – |
| Christmas Trees | vetch (Vicia spp.) | 0.17 L/acre | – | 12 d |
| Conifers | Labelled weeds | 0.17–0.227 L/acre | – | – |
| Conifers | Labelled weeds | 0.17–0.227 L/acre | – | 12 d |
| Cranberry | Vetch | – | 60 d | – |
| Cranberry | vetch | – | 60 d | 12 d |
| Flax | Canada thistle, common groundsel, scentless chamomile, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.227–0.336 L/acre | – | – |
| Grass Seed | Weeds listed on label plus alsike clover | 0.17–0.336 L/acre | – | 12 d |
| Grass Seed Production | Weeds listed on label plus alsike clover | 0.17–0.336 L/acre | – | – |
| Kohlrabi | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | – |
| Mustard Cabbage | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | – |
| Napa Cabbage | Ragweed, vetch, common groundsel, Canada thistle; suppression of sheep sorrel | 0.227 L/acre | 30 d | – |
| Non-Crop | Canada thistle and other labelled weeds | 0.17–0.336 L/acre | – | 12 d |
| Non-Crop | Kudzu (short-term or season-long suppression of top growth) | 0.113–0.336 L/acre | – | – |
| Non-Crop | Spotted and diffuse knapweed | 0.283 L/acre | – | – |
| Non-Crop | Spotted and diffuse knapweed | 0.283 L/acre | – | 12 d |
| Non-Crop | Weeds as per Weeds Controlled table | 0.17–0.336 L/acre | – | – |
| Oats | Canada thistle, common groundsel, perennial sow-thistle (top growth control), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.17–0.227 L/acre | – | 12 d |
| Oats | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.17–0.227 L/acre | – | – |
| Onion | Labelled weeds | 0.17–0.227 L/acre | 45 d | – |
| Onion | Labelled weeds | 0.17–0.227 L/acre | 45 d | 12 d |
| Pear | Perennial vetch species and labelled weeds | 0.227 L/acre | 30 d | – |
| Pome Fruit | perennial vetch species and labelled weeds | 0.227 L/acre | 30 d | 12 d |
| Poplar | Canada thistle and other labelled weeds | 0.336 L/acre | – | – |
| Poplar | Canada thistle and other labelled weeds | 0.336 L/acre | – | 12 d |
| Quince | Perennial vetch species and labelled weeds | 0.227 L/acre | 30 d | – |
| Rangeland | Weeds on label plus alsike clover | 0.17–0.336 L/acre | – | – |
| Rangeland | Weeds on label plus alsike clover | 0.17–0.336 L/acre | – | 12 d |
| Rutabaga | Common ragweed | 0.227 L/acre | 83 d | – |
| Rutabaga | common ragweed | 0.227 L/acre | 83 d | 12 d |
| Saskatoon Berry | Canada thistle | 0.227 L/acre | 45 d | – |
| Saskatoon Berry | Canada thistle | 0.227 L/acre | 45 d | 12 d |
| Shelterbelt Species | Canada thistle | 0.336 L/acre | – | – |
| Shelterbelt Trees | Canada thistle | 0.336 L/acre | – | 12 d |
| Spinach | Common ragweed, common groundsel | 0.117 L/acre | 21 d | – |
| Spinach | common ragweed, common groundsel | 0.117 L/acre | 21 d | 12 d |
| Stone Fruit | Broadleaf weeds including vetch | 0.17–0.336 L/acre | 30 d | – |
| Stone Fruit | Broadleaf weeds including vetch | 0.17–0.336 L/acre | 30 d | 12 d |
| Strawberry | Tufted vetch, Canada thistle; suppression of sheep sorrel and ox-eye daisy | 0.227–0.336 L/acre | – | – |
| Strawberry | tufted vetch, Canada thistle; suppression of sheep sorrel and ox-eye daisy | 0.227–0.336 L/acre | – | 12 d |
| Sugar Beet | Canada thistle | 0.227–0.336 L/acre | 90 d | – |
| Summerfallow | Canada thistle, scentless chamomile, common groundsel, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.336 L/acre | – | – |
| Summerfallow | Canada thistle, scentless chamomile, common groundsel, wild buckwheat, perennial sow-thistle (top growth), volunteer alfalfa | 0.336 L/acre | – | – |
| Turnip | Labelled weeds | 0.17–0.227 L/acre | 30 d | – |
| Turnip | Labelled weeds | 0.17–0.227 L/acre | 30 d | 12 d |
| Wheat | Canada thistle, common groundsel, perennial sow-thistle (top growth control), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.17–0.227 L/acre | – | 12 d |
| Wheat | Canada thistle, common groundsel, perennial sow-thistle (top growth), wild buckwheat, scentless chamomile, volunteer alfalfa | 0.17–0.227 L/acre | – | – |
| Wheat | Giant ragweed (emergence to five leaf stage) | 0.227 L/acre | 60 d | – |
| Wheat | Labelled weeds | 0.17–0.227 L/acre | 60 d | – |
| Wheat | Labelled weeds; giant ragweed (emergence to five leaf stage) | 0.17–0.227 L/acre | 60 d | 12 d |
Adjuvant requirements, compatibility notes, and mixing restrictions from the official label. Always confirm against the official label PDF before mixing.
| Guidance | Adjuvant | Rate |
|---|---|---|
| Required | MERGE® ADJUVANT Poast Ultra Liquid Emulsifiable Herbicide 0.32 - 0.47 L/ha plus Merge Adjuvant 0.75-1.0 L/ha | 0.75-1.0 L/ha |
| Recommended | MERGE® ADJUVANT add the required amount of Merge adjuvant or non-ionic surfactant plus fertilizer | – |
| Recommended | NIS add the required amount of Merge adjuvant or non-ionic surfactant plus fertilizer | – |
| Recommended | anti-foaming agent If excess foaming occurs, a silicone anti-foaming agent may be added (e.g. Halt) | – |
| Recommended | adjuvant If a tank-mix partner requires the addition of an adjuvant add the recommended adjuvant and dilution rate to the tank-mix. | – |
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.
