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Organic farmers have a wealth of alternatives to synthetic insecticides--biological pest control, row covers, and even natural insecticides. A company called AgriSolar has a different alternative: a solar-powered system that attracts, disorients, and ultimately kills insects. The system is incredibly effective, if AgriSolar is to be believed.

Researchers in Africa say malaria-spreading bugs can quickly become resistant to pesticide commonly used to treat bednets