European Study Shows Agricultural Pesticides Harming Bumblebees Despite Regulations

Trinity College Dublin published a study in the journal Nature that showed agricultural pesticides are still harming bumblebees across Europe, despite tightened pesticide regulations. The study, at 106 sites across eight European countries, showed that bumblebee colonies exposed to common, aproved agricultural pesticides experienced a reduced number of colonies, reduced colony weight, and fewer new queens. “Our findings show that the current assumption of pesticide regulation—that chemicals which individually pass laboratory tests and semi-field trials and are considered environmentally benign—fails to safeguard bees and potentially other pollinators that support agricultural production and wild plant pollination,” said Dr. Jessica Knapp, co-lead author.