Scientists use Doppler radar to track pests


Issue Date: October 15, 2014

Corn earworms, also known as cotton bollworms, migrate at night, making them notoriously hard to track. Farmers worried about controlling infestations have to make educated guesses about the pest's movements, based on reports from other areas and past experience. Guessing wrong can be expensive: The pest costs cotton farmers an estimated $200 million a year.

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