Dr. Losey needs to collect data on how long larvae live on milweed plants near and far from Bt corn fields.
The monarch butterfly is one of the most well-known and researched butterflies on the planet. It has orange wings that are laced with black lines and surrounded by white dots. Millions of monarch butterflies migrate from the United States and Canada south to California and Mexico for the winter. Biotechnology has been used to improve Bt corn's resistance to insect pests. Its insect protection is provided by a naturally occurring microorganism known as Bacillus thuringiensis, or "Bt." The protein produced by Bt corn targets caterpillars of the order Lepidoptera.
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