Are Weeds in Your Field Resistant to Herbicide?
In Saskatchewan there are currently 16 weed species that have been confirmed to be resistant to herbicides. Four are grassy weeds and 12 are broadleaf weeds. The herbicide groups that have one or more weeds resistant to them are Groups 1, 2, 3, 4, 9, 14, 15 and 25.
Plants can be herbicide resistant or herbicide tolerant.