A multi-university study has tracked the invasion of
herbicide-resistant waterhemp into Canada and what it means to all farmers.
Professor Pat Tranel with the University of Illinois says there are two species of waterhemp in the Midwest, classified as one. He says both types, including the non-weedy one, have been found in Canada, “One of those appeared to be a migration event from the Midwest. Wherein the other population, the other field, it looked like the non-weedy variety was now becoming weedy.”
Tranel says that shows the different ways waterhemp evolves resistance,
“They can evolve resistance from their own mutations within a field or there
can be these migration events.
Continue reading Study: How resistant waterhemp emerged in Canada at Brownfield Ag News.
