When Monsanto revolutionized agriculture with a line of genetically engineered seeds, the promise was that the technology would lower herbicide use—because farmers would have to spray less. In fact, as Washington State University researcher Chuch Benbrook has shown, just the opposite happened.
Sixteen years on, Roundup (Monsanto's tradename for its glyphosate herbicide) has certainly killed lots of weeds. But the ones it has left standing are about as resistant to herbicide as the company's Roundup Ready crops, which are designed to survive repeated applications of the agribusiness giant's own Roundup herbicide.
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