Martin LaBar / https://www.flickr.com/photos/martinlabar/

The federal government will spend millions of dollars trying to figure out why honeybees and monarch butterflies are disappearing.

Purdue entomology professor Christian Krupke says the study—which will include several federal agencies-- is long overdue.

He says the consensus is that there are a number of factors that have led to the decline of honeybees.

"Pathogens, parasites, pesticides and habitat availability," says Krupke. "Which of those ranks first largely depends on where those particular bees reside."

French study points to pesticides as cause of CCD

Apr 18, 2012

Researchers believe they are closing in on what is causing the decline in the number of honeybees.

A new study by French scientists points to a pesticide called neonicotinoid (NEE-oh-NIK-uh-tin-oyd).

Purdue Entomologist Christian Krupke says there seems to be more of a direct link between chemical use and Colony Collapse Disorder. He says specifically, this nicotine-based class of pesticides. The French researchers gave a non-lethal dose to honeybees they studied, which led to behavioral changes.