Winter hit U.S. honeybees hard with the highest loss rate yet, an annual survey of beekeepers showed. The annual nationwide survey by the Bee Informed Partnership found 37.7% of honeybee colonies died this past winter, nearly 9 percentage points higher than the average winter loss. The survey of nearly 4,700 beekeepers managing more than 300,000 colonies goes back 13 years and is conducted by bee experts at the University of Maryland, Auburn University and several other colleges. Explore the colony loss map and other surveys in NJ.