US: Insecticide application timing vital to native bee conservation

Research by Jonathan Larson, a doctoral student at the University of Kentucky, found that when neonicotinoids are applied to flowering lawn weeds that are frequented by native bees, the chemicals can negatively impact local pollinator populations. Larson's research, published in the journal PLOS ONE, showed that exposure to clothianidin, a neonicotinoid insecticide, negatively affected queen production. It also slowed foraging and caused higher mortality rates in worker bees within five days after exposure.

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