PCP #31597 · Syngenta Canada Inc. · Herbicide
Group 22 herbicide containing diquat ion for desiccation of pulses, oilseeds, cereals, and other crops, vine killing in potatoes, weed control in stale seedbed applications, and non-crop areas. Provides rapid leaf kill (3-4 days) with stem kill taking place gradually (7-14 days).
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 grass | 1.86 L/acre | – | – |
| Bean | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.85 L/acre | – | – |
| Bean | Desiccation - Heavy crop stand and/or weedy crop and/or heavy vine regrowth | 0.688–0.931 L/acre | – | – |
| Bean | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Bean | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Beet | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Beet | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Canola | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.688 L/acre | – | – |
| Canola | Desiccation - Very dense canopy and/or weedy crop | 0.688–0.931 L/acre | – | – |
| Carrot | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Carrot | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Chickpea | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.688 L/acre | – | – |
| Chickpea | Desiccation - Heavy crop stand and/or weedy crop and/or heavy vine regrowth |
| 0.688 L/acre |
| – |
| – |
| Cole Crops | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Cole Crops | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Corn | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Corn | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Cucumber | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Cucumber | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Faba Bean | Desiccation - Use higher spray rates for dense canopies and/or weedy crops | 0.506–0.931 L/acre | 10 d | – |
| Flax | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.688 L/acre | – | – |
| Flax | Desiccation - Very dense canopy and/or weedy crop | 0.688–0.931 L/acre | – | – |
| Legume Seed Crops | Desiccation - Full canopy and/or weedy crop | 0.688–1.09 L/acre | 7 d | – |
| Legume Seed Crops | Desiccation - Very dense canopy and/or weedy crop and/or secondary regrowth | 1.09 L/acre | 7 d | – |
| Lentils | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.688 L/acre | – | – |
| Lentils | Desiccation - Very dense canopy and/or weedy crop | 0.688–0.931 L/acre | – | – |
| Lupin | Desiccation - Full canopy, few weeds (normal crop) | 0.931 L/acre | 7 d | – |
| Mustard | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.688 L/acre | – | – |
| Mustard | Desiccation - Very dense canopy and/or weedy crop | 0.688–0.931 L/acre | – | – |
| Non-Crop Land | Weeds | 0.931–1.86 L/acre | – | – |
| Oats | Corn spurry less than 8 cm high | 0.364 L/acre | – | – |
| Oats | Corn spurry more than 8 cm high | 0.506 L/acre | – | – |
| Onion | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Onion | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Pea | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.688 L/acre | – | – |
| Pea | Desiccation - Very dense canopy and/or weedy crop | 0.688–0.931 L/acre | – | – |
| Pea | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Pea | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Potato | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Potato | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Potato | Vine killing - All top growth conditions (aerial application) | 0.688–0.931 L/acre | 1 d | – |
| Potato | Vine killing - Top growth fully mature, little or no weeds | 0.506 L/acre | 1 d | – |
| Potato | Vine killing - Top growth heavy or top growth light and weedy field | 0.506–0.931 L/acre | 1 d | – |
| Potato | Vine killing - Top growth heavy or weedy field | 1.42 L/acre | 1 d | – |
| Potato | Vine killing - Top growth light, little weed growth or top growth heavy and in early stage of maturity | 0.688–0.931 L/acre | 1 d | – |
| Soybean | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.85 L/acre | – | – |
| Soybean | Desiccation - Heavy crop stand and/or weedy crop and/or heavy vine regrowth | 0.688–0.931 L/acre | – | – |
| Soybean | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Soybean | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
| Sunflower | Desiccation - Full canopy, few weeds (normal crop) | 0.506–0.688 L/acre | – | – |
| Sunflower | Desiccation - Very dense canopy and/or weedy crop | 0.688–0.931 L/acre | – | – |
| Turnip | Large weeds (greater than 5 cm high) | 1.86 L/acre | – | – |
| Turnip | Small weeds (3-5 cm high) | 0.931 L/acre | – | – |
Adjuvant requirements, compatibility notes, and mixing restrictions from the official label. Always confirm against the official label PDF before mixing.
| Guidance | Adjuvant | Rate |
|---|---|---|
| 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 | 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.
