Honeybees are dying. In the winter of 2012-2013, one-third of U.S. honeybee colonies died or disappeared, a 42 percent increase from the year before and well above the 10-15 percent losses beekeepers ...

Colony collapse disorder (CCD)—the sudden and massive die-off of honeybees—has emerged as one of the most mysterious ecological disasters of the past several years, and one of the most expensive.