The Disappearing Bumblebee

Bumblebee populations are down, in a trend resembling the decline of the honeybee.

ARS entomologists James Strange, left, and Terry Griswold, right, and Utah State University graduate student Jonathan Koch inspect a nest of bumble bees.
ARS entomologists James Strange, left, and Terry Griswold, right, and Utah State University graduate student Jonathan Koch inspect a nest of the western bumblebee, which is being reared as part of an effort to understand the effects of the pathogen Nosema bombi on colony development.
Leah Lewis/ARS