PCP #31597 · Syngenta Canada Inc. · Herbicide
Group 22 contact herbicide (diquat) for potato vine killing, pre-harvest desiccation of pulse, oilseed and legume seed crops, weed control in vegetable and field crops, corn spurry control in oats, perennial grass suppression under apple trees, and weed control on 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 |
|---|---|---|---|---|
| Alfalfa | Pre-harvest desiccation (seed crops only) | 0.688–1.09 L/acre | – | 24 d |
| Apple | Perennial grass | 1.86 L/acre | – | 24 d |
| Bean | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Bean | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Bean | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Beet | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Bird's-foot Trefoil | Pre-harvest desiccation (seed crops only) | 0.688–1.09 L/acre | – | 24 d |
| Canola | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Carrot | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Chickpea | Pre-harvest desiccation | 0.506–0.688 L/acre | 4 d | 24 d |
| Cole Crops | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Corn | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Cucumber | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 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 | – | 24 d |
| Guar | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Lablab Bean | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Lentil | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Lupin | Pre-harvest desiccation | 0.931 L/acre | 7 d | 24 d |
| Mustard | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Non-Crop Areas | Weeds and grasses (top kill) | 0.931–1.86 L/acre | – | 12 d |
| Non-Crop Areas | Weeds between the rows after crop and weed emergence | 0.931–1.86 L/acre | – | 24 d |
| Oats | Corn spurry | 0.364–0.506 L/acre | – | 24 d |
| Onion | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Pea | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Pea | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Pigeon Pea | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Potato | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Potato | Potato vine killing and weed desiccation | 0.506–1.42 L/acre | 1 d | 24 d |
| Soybean | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| Soybean | Pre-harvest desiccation | 0.506–0.931 L/acre | – | 24 d |
| Sunflower | Pre-harvest desiccation | 0.506–0.931 L/acre | 15 d | 24 d |
| Turnip | Emerged weeds (stale seedbed) | 0.931–1.86 L/acre | – | 24 d |
| White Clover | Pre-harvest desiccation (seed crops only) | 0.688–1.09 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 | FALCON 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 for each 1000 L of spray mixture |
| Required | FALCON 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 for each 1000 L of spray mixture |
| Required | FALCON 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 non-ionic surfactant/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 for each 1000 L of spray mixture |
| Compatible | 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 LI 700/1000 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 add wetters, spreaders or stickers to the spray solution (Sweet White Lupins/Bean) | – |
| Do not mix | wetters, spreaders, stickers, any surfactant Do not use wetters, spreaders or stickers. ... Do not use any surfactant. (Oats for Corn Spurry Control) | – |
| Do not mix | non-ionic surfactant or LI 700 (adjuvants generally) Use of an adjuvant such as a non-ionic surfactant or LI 700 is not recommended for this crop, except as noted (Potato). Do not use wetters, spreaders or stickers except as directed for the 1.25 L rate in the prairie provinces. | – |
| 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.
