Herbicide resistance: Are soil-applied materials immune?

Jongeneel, Susan
April 2013
Southwest Farm Press Exclusive Insight;4/22/2013, p6
The article presents information on the evolution of herbicide-resistant weeds, which has become a major problem for weed management practitioners in the U.S. Aaron Hager, associate professor of weed science at the University of Illinois, said that biotypes of 12 weed species in Illinois are resistant to one or more herbicide action mechanisms. Hager said that many waterhemp populations contain plants that are resistant to protoporphyrinogen oxidase (PPO)-inhibiting herbicides in Illinois.


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