By Susan Milius
Bumblebees sneak out from work, too, and fugitives buzzing away from the job at commercial greenhouses could be spreading diseases to wild bumblebees and contributing to pollinator declines.
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Greenhouse growers bring in the bumblebees for tomatoes and other crops that need what’s called “buzz pollination,” a strong vibration that shakes loose the pollen. Honeybees don’t give the buzz, but bumblebees do.