It was the worst winter die-off in more than a decade.

Wild bee populations are declining too, but researchers found in 2015 that wild bees from around Ithaca, New York recovered from the introduction of the deadly “varroa mite” in the 1990s while domesticated bees did not.

Thiele also says domesticated bees are more vulnerable because they are raised using smoke and chemicals and fed sugar water, which he claims is bad for their health.

Habitat loss, along with heavy pesticide use, climate change and increasing urbanization are the main causes for declining bee populations, experts say.

 

Read full story on: Reuters