A Growing Threat Down on the Farm

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Science  25 May 2007:
Vol. 316, Issue 5828, pp. 1114-1117
DOI: 10.1126/science.316.5828.1114

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Farmers have become dependent on a herbicide called glyphosate and on crops engineered to resist it. Now, weeds are becoming resistant, and researchers are scrambling for alternatives. Crops engineered to resist dicamba, described in a report on page 1185 of this issue of Science, may offer one such alternative.