The findings provide direct evidence of the impact of neonicotinoid insecticides on traveling songbirds that rely on agricultural habitats.
PARIS—A widely used insecticide can threaten the health of bumblebee colonies and interfere with the homing abilities of honeybees, according to a pair of new studies. The reports, one by a U.K. team and one by a French team, were published 29 March at the Science Express Web site of the journal Science.
Bumblebees and honeybees are important pollinators of flowering plants, including many major fruit and vegetable crops. Each year, for example, honeybee hives are driven from field to field to help pollinate almond, apple, and blueberry crops, among others.