In 1993, when Monsanto asked the U.S. Department of Agriculture to approve Roundup-tolerant soybeans, it dispensed with the issue of potential resistant weeds in two modest paragraphs. It told the agency that "glyphosate is considered to be a herbicide with low risk for weed resistance."
The company also wrote that several university scientists agreed "that it is highly unlikely that weed resistance to glyphosate will become a problem as a result of the commercialization of glyphosate-tolerant soybeans." Oops. Since then, resistance to glyphosate has emerged in 20 different weed species. |