Grape scents repel mosquitoes

New finding could lead to less toxic, less costly insect repellents

By Stephen Ornes, 11:28 AM October 22, 2013

People have a love-hate relationship with DEET, the critical ingredient in many insect repellents. The chemical is great at repulsing biting pests like mosquitoes and fleas. But it’s also expensive — and may cause health problems in people. The good news: Scientists have just reported finding alternatives that are safer and less expensive.

The recently identified chemicals work as well as DEET. Three are even safe enough to use in food. And these repellents don’t smell like nasty chemicals: Th...

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