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Published July 18, 2014, 12:00 AM

Waterhemp


Herbicide-resistant weeds are becoming a growing problem for farmers in North Dakota and Minnesota. Waterhemp, pictured here, is one of the weeds now resistant to glyphosate, the active ingredient in Roundup. (Photo courtesy of Richard Zollinger, North Dakota State University Extension Service weed specialist)
Read the article: Herbicide-resistant weeds a growing problem for farmers