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A tech investigates weeds in a field

Better Farming: Herbicide Resistance Across the Prairies

April 29, 2025 — 

Rob Gulden, a professor in the Department of Plant Science at the University of Manitoba, says that surveys, which are conducted across the Prairies on approximately five-year cycles, have been finding new types of resistance in different weeds.

“The biology of weeds and our management systems have created this issue,” says Gulden.

“Not only has the proportion of the already-resistant weeds increased, but every time the surveys run, they also identify biotypes with new resistant traits that haven’t been seen before.”

To read the entire article, please follow the link to Better Farming.

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