Seeking a Culprit When Bumblebee Carcasses Pile Up
Blame the linden trees? Maybe pesticides left by humans? Or is nature just cruel sometimes?
In June 2013, in a Target parking lot in Wilsonville, Ore., an estimated 50,000 bumblebees dropped dead. Shoppers reported bees falling from branches and crawling on the ground. Piles of carcasses scattered beneath dozens of linden trees marked the largest mass bee kill ever recorded.
The Oregon Department of Agriculture later determined that a pesticide used against aphids had poisoned the be...