Pest quickly developing resistance to Monsanto's genetically modified corn

Wednesday, December 28, 2011 | 7:18 p.m. CST; updated 7:19 p.m. CST, Saturday, December 31, 2011

One of the nation's most widely planted crops — a genetically engineered corn plant that makes its own insecticide — might be losing its effectiveness because a major pest appears to be developing resistance more quickly than scientists expected.

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