Three modes of action provide built-in resistance management in this herbicide with enhanced performance against kochia and other broadleaf weeds.

This webinar explores the current situation with herbicide resistance in North America, discusses some smoking guns out there that are increasing the problem, and delves into some strategies for farmers to incorporate on their farms to combat this on going challenge. [To view any of our webinar replays, you must be logged in with a free user account.]

It might not seem “sociology” — the study of groups of people — would have anything to do with fighting herbicide resistance. But Katie Dentzman has a different idea.

With Australian no-tillers dealing with some of the worst weed resistance issues in the world, the country’s growers are adopting a “zero tolerance policy” or a “take no prisoners” approach to weed control.

Seeking to better understand herbicide resistance, researchers exposed more than 70 million grain amaranth seeds to a soil-based herbicide. Though preliminary, the findings suggest that the mutation rate in amaranth is very low, and that low-level herbicide application contributes little — if anything — to the onset of new mutations conferring resistance, say researchers at the University of Illinois.

Because of serious weed concerns with the area’s over 10 million acres of wheat and barley grown with extremely limited rainfall, Western Australia is the herbicide-resistance capital of the world.