Oklahoma, Illinois, Iowa, Delaware, Maryland, Pennsylvania, Maine and Wisconsin all saw more than 60 percent of their bee hives die since April 2014, according to the survey.
Since April 2014, beekeepers lost 42.1 percent of their colonies: the second highest loss rate in nine years, according to an annual survey conducted by a bee partnership that includes the U.S. Department of Agriculture.
A combination of mites, poor nutrition and pesticides are to blame for the bee deaths. USDA bee scientist Jeff Pettis said last summer's large die-off included unusual queen loss and seemed worse in colonies that moved more.
Dick Rogers, chief beekeeper for pesticide-maker Bayer, said the loss figure is "not unusual at all".
Who believes him?