Christina M. Grozinger
Center for Pollinator Research, Department of Entomology, Penn State
It Takes a Colony
Surveys of U.S. beekeepers have documented a 28 percent decline (on average) in honey bee colonies each winter during the last ten years, and a 28-45 percent decline (on average) during the full year. In Pennsylvania, beekeepers reported a loss of 52 percent of their colonies over the last winter (2016-2017).