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  • Growing numbers of corn farmers ignoring refuge requirement

    Michael Gray, a professor of crop sciences, has found growing non-compliance with the U.S. Environmental Protection Agency's requirement that farmers who plant genetically modified corn plant 20 percent of their acreage with non-modified corn to prevent genetic resistance.

    Michael Gray, a professor of crop sciences, has found growing non-compliance with the U.S. Environmental Protection Agency's requirement that farmers who plant genetically modified corn plant 20 percent of their acreage with non-modified corn to prevent genetic resistance.

    Photo by L. Brian Stauffer

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      Michael Gray, a professor of crop sciences, has found growing non-compliance with the U.S. Environmental Protection Agency's requirement that farmers who plant genetically modified corn plant 20 percent of their acreage with non-modified corn to prevent genetic resistance.

      Photo by L. Brian Stauffer

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      Commercially available since 1996, Bt corn is resistant to European corn borers, western corn rootworm and other crop-destroying insects.

      Photo by L. Brian Stauffer

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