If planning weed control post-harvest, be certain that the herbicide is registered to be used ahead of canola next year. Be familiar with recropping restrictions. Several products leave a residue that can affect canola germination and emergence next spring. The dry soil conditions present in parts of the prairies will be more conducive to herbicide carryover. It’s a good idea to consult with your local retailer or herbicide provider for more information on such cautions.