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BOLSTER II® DESICCANT Solution
PCP #33743 · Interprovincial Cooperative Limited · Herbicide
Group 22
Group 22 herbicide solution containing diquat ion for desiccation of field crops, vine killing in potatoes, and weed control in various agricultural and non-crop settings.
Registered uses (51)
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 grass | 1.86 L/acre | — |
| Bean | Desiccation - full canopy, few weeds | 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 | 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 | 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 | 0.506–0.931 L/acre | 10 d |
| Flax | Desiccation - full canopy, few weeds | 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 |
| Lentil | Desiccation - full canopy, few weeds | 0.506–0.688 L/acre | — |
| Lentil | Desiccation - very dense canopy and/or weedy crop | 0.688–0.931 L/acre | — |
| Lupin | Desiccation - full canopy, few weeds | 0.931 L/acre | 7 d |
| Mustard | Desiccation - full canopy, few weeds | 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 | 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 - top growth fully mature, little or no weeds | 0.506 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 | 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 | 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 | — |
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.