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Organic Consumers Association

Superweeds and Herbicide Use on the Rise

  • New report links genetically engineered crops and their associated herbicides with escalation of herbicide-resistant weeds and chemicals used to fight them
    Food and Water Watch, July 1, 2013
    Straight to the Source

For related articles and more information, please visit OCA's Genetic Engineering page and our Millions Against Monsanto page.

Washington, D.C. — Despite being genetically engineered with the sole purpose of helping farmers fight weeds, glyphosate-tolerant GE crops such as Monsanto’s Roundup Ready corn have spurred a crisis of weed management for farmers nationwide. A report released today by Food & Water Watch analyzes the connection between the rapid proliferation of GE crops and affiliated pesticides in the United States and the rise of herbicide-resistant “superweeds” that have led to the steadily increasing use of more dangerous herbicides.

“For nearly 20 years, herbicide-tolerant GE crops have been marketed as a way to improve yields, lower costs for farmers and reduce agriculture’s environmental impact. Not only have these claims not held up, they’ve backfired,” said Wenonah Hauter, executive director of Food & Water Watch. “The chemical arms race that industrial agriculture is waging against weeds in this country is not working and is doing incalculable harm to our environment and human health.”

The U.S. Department of Agriculture (USDA) and Environmental Protection Agency (EPA) herbicide data analyzed in the report, Superweeds: How Biotech Crops Bolster the Pesticide Industry, shows that herbicide use on corn, cotton and soybeans has steadily grown by 26 percent in the years between 2001 and 2010. The widely used glyphosate herbicides, primarily Monsanto’s Roundup Ready line, have become ineffective as the weeds develop stronger resistance due to continuous over-exposure to the chemical. As glyphosate proves to be increasingly ineffective, more farmers are turning to more dangerous herbicides including 2,4-D. Use of 2,4-D has increased since glyphosate-resistant crops became widespread, growing 90 percent between 2000 and 2012.

The report analyzes how the interdependence between the agrichemical and biotechnology industries has fueled weed resistance. It offers an overview of the worst offending weeds; agrichemical trends over the years since GE crops have been widely adopted; and biotechnology companies’ rush to win approval of new GE crops resistant to different combinations of more-toxic chemicals.


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