Weed Science Society Releases Proceedings of Herbicide Resistance Summit

Weed Science Society Releases Proceedings of Herbicide Resistance Summit

Slides and webcast now available from Weed Science Society of America's September summit on herbicide resistant weeds

Slides and a webcast of the Weed Science Society's September scientific summit on herbicide resistant weeds are now available for free online.

Participants from approximately 100 cities across the U.S., Australia, Canada and Germany attended the event in person or via webinar.

Speakers at the summit said herbicide resistance meets the classic definition of a "wicked" problem due to its complexity and the lack of a single, optimal solution. Effective responses to control these weed populations must be complex, varied, community based and holistic, they said.

Related: Weed Science Society Addresses Myths About 'Superweeds'

Slides and webcast now available from Weed Science Society of America's September summit on herbicide resistant weeds

Harold Coble, Ph.D., a farmer and retired agronomist with the USDA Office of Pest Management Policy, pointed out that the alarm bells sounded in recent years have so far prompted little change; there continue to be annual increases in the acreage of herbicide-resistant weeds reported.

"The summit isn't about assigning blame, but instead about understanding the socioeconomic dimensions of the problem and moving towards systems-based solutions," he said. "Resistance will only be managed through the combined efforts of all parties involved: growers, industry, universities, retailers, consultants, commodity groups, government, landowners, lending institutions, professional societies, non-governmental organizations and the press," he said. "Each of us has a role to play."

Related: USDA to Help Producers Combat Herbicide Resistant Weeds

Speakers at the event recommended several ways to control herbicide resistance:
• Establishing area-wide resistance management programs for specific threats, like Palmer amaranth.
• Communicating the positive impact of resistance management on farm profitability.
• Developing resistance management certification programs.
• Implementing scouting programs for early identification of weeds that escape herbicide controls.
• Using financial incentives to promote adoption of herbicide resistance management plans and to encourage innovation in nonchemical weed management practices.
• Declaring certain weeds as noxious or invasive to certain geographical regions to increase the awareness and better prepare.

Find the summit slides and webcast online.


In the coffee shop, it is known as Palmer pigweed. In university circles, it is referred to as Palmer amaranth. Whatever you want to call it, this weed is the No. 1 weed to watch. Stay on top of your control plan with our new free report, Palmer Amaranth: Understanding the Profit Siphon in your Field.


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