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Published April 25, 2012, 12:00 AM


At left are untreated waterhemp weeds. Jeff Stachler’s hands flank sets of weeds from the Barney, Kindred and Galesburg areas in North Dakota — all healthy and growing, indicating creeping and increasing resistance – even when treated with one times or three times the normal herbicide rates. “The longer-term you select, the higher the level of resistance,” says Stachler, a weed scientist in his North Dakota State University greenhouse. (Mikkel Pates, Agweek)
Read the article: Tense future