Farmers face new challenge as group 14-resistant kochia spreads across western Canada
Farmers face new challenge as group 14-resistant kochia spreads across western Canada
A new study shows that Group 14-resistant kochia has developed and spread rapidly across Western Canada.
Group 14 is an important herbicide group for controlling the prolific weed because it already has widespread resistance to glyphosate, a Group 9 product, and has long had resistance to Group 2 chemistries.
Back in 2021, the first known case of Group 14-resistant kochia was discovered in West Central Saskatchewan. In 2022, it was discovered in North Dakota.
Charles Geddes, a research scientist
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