A new federal report blames a combination of problems for a mysterious and dramatic disappearance of U.S. honeybees since 2006.
The intertwined factors cited include a parasitic mite, multiple viruses, bacteria, poor nutrition, genetics, habitat loss andpesticides.
The multiple causes make it harder to do something about what’s called colony collapse disorder, experts say. The disorder has caused as much as one-third of the nation’s bees to just disappear each winter since 2006.
Bees, especially honeybees, are needed to pollinate crops.
The federal report, issued Thursday by the Agriculture Department and the Environmental Protection Agency, said the biggest culprit is the parasitic mite varroa destructor, calling it “the single most detrimental pest of honeybees.”