Worker and queen honeybees exposed to field realistic levels of neonicotinoids die sooner, reducing the health of the entire colony, biologists have found. The researchers were also surprised to find that the neonicotinoid contaminated pollen collected by the honeybees came not from crops grown from neonicotinoid treated seeds, but plants growing in areas adjacent to those crops. This is season-long, field realistic research with typical exposure.

Source: Exposure to neonic pesticides results in early death for honeybee workers and queens