EPA: Monsanto corn may be losing effectiveness against bugs in Minnesota, other states

An agency investigation says a genetically modified version of corn may be losing its effectiveness to ward off rootworms in Minnesota and three other big corn-producing states. The pest may be developing a resistance to the plant's pesticide. Business Week says the bug is among the most destructive corn pests and costs farmers about $1 billion a year.
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An agency investigation says a genetically modified version of corn may be losing its effectiveness to ward off rootworms in Minnesota and three other big corn-producing states. The pest may be developing a resistance to the plant's pesticide. Business Week says the bug is among the most destructive corn pests and costs farmers about $1 billion a year.

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