A study from Cornell University in New York was recently published in the science journal Nature and suggests that pollen from Bt corn may have toxic effects on larvae of the monarch butterfly. The caterpillar, or larval stage, of this insect feeds on milkweed. Because some milkweed grows next to corn in the Midwest, there is the potential that Bt corn pollen may drift onto milkweed and affect monarch larvae. The Cornell study has generated a tremendous amount of coverage in the national media because of the potential clash between biotechnology and wildlife.
Iowa State University
Rice, Marlin E., "Monarchs and Bt corn: questions and answers" (1999). Integrated Crop Management News. 2137.
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