Researchers Identify Herbicide Resistant Mechanism In Waterhemp

In the Missouri Ruralist

Responding to the first known report of waterhemp showing resistance to HPPD (4-hydroxyphenylpyruvate dioxygenase)-inhibiting herbicides, such as Callisto, Impact, and Laudis, weed science researchers at the University of Illinois have identified two unique mechanisms in the plant that have allowed the weed to “get around” these herbicides.

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