PCP #31597 · Syngenta Canada Inc. · Herbicide
Group 22 bipyridylium herbicide (diquat) for potato vine killing, desiccation of pulse, oilseed and legume forage seed crops, weed control in vegetable and field crops, corn spurry control in oats, and weed control in non-crop land.
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 grasses | 1.86 L/acre | – | 24 d |
| Bean | Pre-harvest desiccation | 0.506–0.931 L/acre | 4 d | 24 d |
| Canola | Pre-harvest desiccation | 0.506–0.931 L/acre | 4 d | 24 d |
| Chickpea | Pre-harvest desiccation | 0.506–0.688 L/acre | 4 d | 24 d |
| Faba Bean | Pre-harvest desiccation | 0.506–0.931 L/acre | 4 d | 24 d |
| Flax | Pre-harvest desiccation | 0.506–0.931 L/acre | 4 d | 24 d |
| Legume Seed Crops | Pre-harvest desiccation | 0.688–1.09 L/acre | 4 d | 24 d |
| Lentil | Pre-harvest desiccation | 0.506–0.931 L/acre | 4 d | 24 d |
| Lupin | Pre-harvest desiccation | 0.931 L/acre | 7 d | 24 d |
| Mustard | Pre-harvest desiccation | 0.506–0.931 L/acre | 4 d | 24 d |
| Non-Crop Land | Weeds and grasses (top kill) | 0.931–1.86 L/acre | – | 12 d |
| Oats | Corn spurry | 0.364–0.506 L/acre | – | 24 d |
| Pea | Pre-harvest desiccation | 0.506–0.931 L/acre | 4 d | 24 d |
| Potato | Potato vine killing / desiccation |
| 0.506–1.42 L/acre |
| 1 d |
| 24 d |
| Soybean | Pre-harvest desiccation | 0.506–0.931 L/acre | 4 d | 24 d |
| Sunflower | Pre-harvest desiccation | 0.506–0.931 L/acre | 15 d | 24 d |
| Vegetables | Emerged weeds (pre-emergent to crop) | 0.931–1.86 L/acre | – | 24 d |
| Vegetables | Weeds between rows | 0.931–1.86 L/acre | – | 24 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 | FALCON NON-IONIC SURFACTANT add 1 L non-ionic surfactant/1000 L or 2.5 L LI 700/1000 L in prairie provinces | 1 L/1000 L |
| Required | LI 700® with LECI-TECH® add 1 L non-ionic surfactant/1000 L or 2.5 L LI 700/1000 L in prairie provinces | 2.5 L/1000 L |
| Recommended | LI 700® with LECI-TECH® add 1 L non-ionic surfactant/1000 L or 2.5 L LI 700/ 1000 L in the prairie provinces | 2.5 L per 1000 L |
| Recommended | non-ionic surfactant Use a non-ionic surfactant, a wetting and spreading agent, at a rate of 1 L for each 1000 L of spray mixture unless otherwise stated. | 1 L per 1000 L of spray mixture |
| Recommended | non-ionic surfactant add 1 L non-ionic surfactant/1000 L or 2.5 L LI 700/ 1000 L in the prairie provinces | 1 L per 1000 L |
| Recommended | non-ionic surfactant For ground or aerial application, use a non-ionic surfactant as a wetting and spreading agent, at a rate of 1 L for each 1000 L of spray mixture. | 1 L per 1000 L of spray mixture |
| Compatible | CO-OP SURFACTANT NI Stage | 1 L/1000 L |
| Compatible | Cornerstone Adjuvant Stage | 1 L/1000 L |
| Compatible | Cornerstone Commercial Stage | 1 L/1000 L |
| Compatible | Cornerstone Surfactant Stage | 1 L/1000 L |
| Compatible | FALCON NON-IONIC SURFACTANT Stage | 1 L/1000 L |
| Compatible | Falcon Surfactant Commercial Stage | 1 L/1000 L |
| Compatible | IPCO SURFACTANT NI Stage | 1 L/1000 L |
| Compatible | LI 700® with LECI-TECH® For beans or lentils, LI 700® at a rate of 2.5 L for each 1000 L of spray mixture may be used. | 2.5 L per 1000 L of spray mixture |
| Compatible | NUFARM ENHANCE™ Stage | 1 L/1000L |
| Compatible | Sequence Surfactant Stage | 1 L/1000 L |
| Do not mix | wetters, spreaders or stickers Do not use wetters, spreaders or stickers (Oats - Corn Spurry Control application) | – |
| Do not mix | non-ionic surfactant or LI 700 (except as noted for 1.25 L rate in prairie provinces) Use of an adjuvant such as a non-ionic surfactant or LI 700 is not recommended for this crop, except as noted. Do not use wetters, spreaders or stickers except as directed for the 1.25 L rate in the prairie provinces. (Potato - Vine Killing) | – |
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.
