Study Strengthens Link Between Neonicotinoids and Collapse of Honey Bee Colonies

Two widely used neonicotinoids--a class of insecticide--appear to harm honey bee colonies over the winter, particularly during colder winters, according to Harvard School of Public Health researchers. The new study replicated a 2012 finding from the same research group that found a link between imidacloprid and Colony Collapse Disorder (CCD), in which bees abandon their hives over the winter and eventually die. The new study also found that a second neonicotinoid, clothianidin, had the same negative effect.

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