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.
Giant ragweed Waterhemp seedling and seeds Common ragweed
Source: University of Minnesota