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Extension home > Extension news > Features > Star Tribune: Weeds resistant to herbicides challenge farmers

Star Tribune: Weeds resistant to herbicides challenge farmers

August 7, 2014

Jeff Gunsolus, Extension weed scientist, updates Christian Lilienthal on herbicide resistance research. Lilienthal is an Extension educator in Nicollet County who informs local farmers coping with the challenge.

Herbicide resistance in weeds is far from a new concept to University of Minnesota Extension agronomists, who have been conducting research and education on it for three decades. But it is an increasingly challenging issue for crop producers. Recently, Star Tribune reporter Tom Meersman spent several hours with Extension weed scientist Jeff Gunsolus to better understand the science behind the problem, and on Aug. 2, published this story.

Extension is helping crop producers meet the challenges of today's agriculture through direct education, resources and tools, and also reaches more farmers through the agricultural professionals who advise them.

Examples of herbicide resistant weeds

Giant ragweed

Giant ragweed

Waterhemp seedling and seeds

Waterhemp seedling and seeds

Common ragweed

Common ragweed



For more information on herbicide resistance, visit Extension's

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