Bret Adee, a third-generation beekeeper who owns one of the largest beekeeping companies in the U.S., lost half of his hives — about 50,000 — over the winter. He pops the lid on one of the hives to show off the colony inside. Greta Mart/KCBX hide caption
varroa mite
With an American honeybee queen for a mother and a European honeybee drone for a father, this worker bee has a level of genetic diversity unseen in the U.S. for decades. Researchers at Washington State University hope a deeper gene pool will give a new generation of honeybees much-needed genetic traits, like resistance to varroa mites. The parasite kills a third of American honeybees each year. Megan Asche/Courtesy of Washington State University hide caption
Maryann Frazier, a researcher at Penn State's Center for Pollinator Research, checks on one of her experimental honeybee hives. Frazier is testing the effects of pesticides on honeybee colonies. Lou Blouin for NPR hide caption