Pesticide makes bees bumble

By Naila Moreira, 15:52 PM April 15, 2008

A naturally derived pesticide previously considered safe for insect pollinators may hamper the foraging of wild bees, researchers report.

Bumblebee larvae raised on pollen spiked with spinosad, an insecticidal mixture of chemicals made by bacteria, grow up to be slow, clumsy foragers, say Lora Morandin of Simon Fraser University in Burnaby, British Columbia, and her colleagues in the July Pest Management Science. As adults, the bees suffer from muscle tremors and take longer to penetrate comp...

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