Pesticides not the sole culprit in honey bee colony declines

Colony declines are a major threat to the world's honey bees, as well as the many wild plants and crops the bees pollinate. Among the lineup of possible culprits—including parasites, disease, climate stress and malnutrition—many have pointed the finger squarely at insecticides as a prime suspect. However, a new study from the University of Maryland shows that the world's most common insecticide does not significantly harm honey bee colonies at real-world dosage levels.

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