It will be crucial in the coming growing season for western Canadian farmers to manage herbicide resistant kochia before it becomes widespread.
At two March 8 meetings in Milk River, Alta., and Foremost, Alta., near where the first glyphosate resistant kochia was found last fall, researchers told farmers to hit the weed hard and fast to slow weed spread.
It’s not just a southern Alberta problem, said Agriculture Canada weed researchers Bob Blackshaw and Hugh Beckie. Kochia can develop resistance anywhere there is wide use of glyphosate.
Kochia emerges early in the season, giving farmers an opportunity to kill it with group 4 and 14 herbicides in pre-seeding burn-off.
It also tends to mature late, providing another opportunity for control before it sets seed.
Source: BASF