28/01/2026
Could it be a coincidence, who knows. Itβs been two very brutal winters. Iβll await the UK statistics via Gov.
U.S. beekeepers reported unusually severe colony deaths going into early 2025, with the hardest hit coming from large commercial operations that normally have the resources and expertise to keep losses lower.
A widely cited Project Apis m. effort found commercial beekeepers (more than 500 colonies) averaged about 62% colony losses over the June 2024 to early 2025 period. In the same set of findings, hobbyist beekeepers (1β49 colonies) averaged about 51%, while sideliner operations (50β500 colonies) averaged about 54%.
Separate nationwide tracking through the 2024β2025 U.S. Beekeeping Survey reported that beekeepers lost an estimated 55.6% of managed colonies from April 1, 2024 to April 1, 2025, the highest since annual tracking began, and well above the 14-year average of 41.4%.
Winter losses were especially punishing in that survey. From Oct. 1, 2024 to April 1, 2025, estimated losses were 40.2%, which the survey notes is about 10.9 percentage points above the long-running winter average (29.3%).
Researchers and industry leaders have described the situation as unusually serious. Cornell entomologist Scott McArt warned that βsomething real bad is going on,β as the scale of losses showed up during the winter movement of hives for crop pollination, especially into California.
Washington State University experts have also warned that commercial losses could land in the 60% to 70% range in 2025, citing the likelihood that multiple stressors are stacking together.
Investigations have focused on overlapping causes that can compound quickly in managed colonies, including Varroa destructor mites, virus pressure, nutrition shortfalls, pesticide exposure, and weather extremes. Public updates also point to lab work examining viruses such as deformed wing virus and acute bee paralysis, alongside concerns about miticide resistance in varroa mites.