Nearly Half of US Honeybee Colonies Died Last Year

America’s honeybee hives just staggered through the second highest death rate on record, with beekeepers losing nearly half of their managed colonies, an annual bee survey found.

But using costly and Herculean measures to create new colonies, beekeepers are somehow keeping afloat. Thursday’s University of Maryland and Auburn University survey found that even though 48% of colonies were lost in the year that ended April 1, the number of United States honeybee colonies “remained relatively stable.”

Honeybees are crucial to the food supply, pollinating more than 100 of the crops we eat, including nuts, vegetables, berries, citrus and melons. Scientists said a combination of parasites, pesticides, starvation and climate change keep causing large die-offs.

Last year’s 48% annual loss is up from the previous year’s loss of 39% and the 12-year average of 39.6%, but it’s not as high as 2020-2021’s 50.8% mortality rate, according to the survey funded and administered by the nonprofit research group Bee Informed Partnership. Beekeepers told the surveying scientists that 21% loss over the winter is acceptable and more than three-fifths of beekeepers surveyed said their losses were higher than that.

“This is a very troubling loss number when we barely manage sufficient colonies to meet pollination demands in the U.S.,” said former government bee scientist Jeff Pettis, president of the global beekeeper association Apimondia that wasn’t part of the study. “It also highlights the hard work that beekeepers must do to rebuild their colony numbers each year.”

The overall bee colony population is relatively steady because commercial beekeepers split and restock their hives, finding or buying new queens, or even starter packs for colonies, said University of Maryland bee researcher Nathalie Steinhauer, the survey’s lead author. It’s an expensive and time consuming process.

The prognosis is not as bad as 15 years ago because beekeepers have learned how to rebound from big losses, she said.

“The situation is not really getting worse, but it’s also not really getting better,” Steinhauer said. “It is not a bee apocalypse.”(...)

Some commercial beekeepers who have succeeded in the past lost as much as 80% of their colonies this past year, while other beekeepers did well, it varied so much, Evans said. Pettis, who has 150 colonies on Maryland’s Eastern shore, had less than 18% loss, saying he used organic acids for mite control. (...)

The demand for pollination from commercial bee colonies is growing even as the beekeepers have to work harder to make up for losses, Steinhauer said. The U.S. Department of Agriculture says 35% of the human diet comes from insect-pollinated plants and the honeybee is responsible for 80% of that pollination.

by Seth Borenstein, AP | Read more:
Image: AP Photo/Julio Cortez