rootworm

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Pests Evolve to Eat Corn Designed to Kill Them

Corn rootworm is once again making a dent in farmers' crops

(Newser) - A hungry pest known as the western corn rootworm is gradually developing a resistance to genetically modified crops engineered to kill it, reports Nature . Entomologists say they're discovering more and more of the beetles that show no ill effects after chowing down on fields of Bt corn—so named... More »

As GMO Corn Weakens, Pesticides Are Back

Rootworms developing resistance to Monsanto gene

(Newser) - In 2003, Monsanto debuted corn seeds with a gene—Bt—that generates pest-killing toxins designed to resist the ravages of rootworm. Soil insecticide use cratered as a result, with only 9% of corn acreage nationwide treated with it in 2010, down from 25% in 2005. But then things started to... More »

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