U.S. honeybee losses soared over the last year, a report from the U.S. Department of Agriculture finds.
Losses of managed honeybee colonies hit 42 percent from April 2014 through April 2015. The 2014 summer loss of 27.4 percent marked the first time summer losses exceeded winter.
"We traditionally thought of winter losses as a more important indicator of health, because surviving the cold winter months is a crucial test for any bee colony. But we now know that summer loss rates are significant too," says Dennis van Engelsdorp, assistant professor at the University of Maryland.