Soybean School: Relying on One Method of Control Won’t Work for Canada Fleabane

Ah, Canada fleabane. This nasty weed isn’t just an issue because of confirmed glyphosate resistance โ€” its very nature of germinating whenever the heck it feels like it means that it’s one weed that can’t be well controlled by just one or even a few control methods. Canada fleabane control and resistance management requires a fully integrated, multi-attack plan to get a handle on this prolific seed producer.

In this Soybean School episode, Drew Thompson, of BASF, walks us through a some trial plots that exemplify the difficulty in controlling this weed. As Thompson says, Canada fleabane not only regrows after being lopped off by the combine, but it also can survive fall discing or simply germinate after harvest (and into fall, winter and early spring). Just one plant could drop as many as a million seeds โ€” even without glyphosate resistant biotypes, that’s a big issue.


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Shaun Haney

Shaun Haney is the founder of He creates content regularly and hosts RealAg Radio on Rural Radio 147 every weekday at 4:30 PM est. @shaunhaney


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