Roundup's strangehold falters in face of new threats
(Newser) -
New breeds of “superweeds” are creeping across the Farm Belt, and shaking up the weedkiller and seed industries in the process. The long-dominant Roundup can't deal with immune invaders like pigweed, horseweed, and Johnsgrass, which has given rival chemical companies a chance to bring back old herbicides that Roundup...
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