In June 2013, a pesticide application on ornamental trees in a shopping-center parking lot in Wilsonville, Oregon, led to the largest documented mass fatality of bumble bees in North America. A new analysis of the incident estimates more than 100,000 bees from nearly 600 colonies were killed, which researchers cite as a cautionary tale about the dangers of pesticides to native bee populations.
Queens of bumble bee Bombus impatiens that encounter imidacloprid in their spring foraging period delay nest initiation and brood emergence
By Rebecca A. Schmidt-Jeffris and Brian A. Nault When used as foliar sprays, neonicotinoids have caused some concern among the general public because — like any pesticide — they can […]
By Andrew Porterfield The class of insecticides called neonicotinoids (neonics) were introduced to a lot of fanfare from farmers and environmentalists alike. They were seen as far less toxic than […]