Are Pesticides to blame for the massive bee die-off? Brett Adee of Adee Honey Farms, takes us out to check on his 92,000 hives in Bruce, South Dakota. He and other beekeepers have lost up to 44% of their hives in recent seasons. Adee blames the pesticides the farmers surrounding him spray on their corn crops. A Purdue University scientist researching bee deaths thinks Adee may be right; while pesticide manufacturers blame it on a mite.