No one doubts that pesticides have a negative effect on bee health, including a damaging effect on immune systems such as gut flora. However, what are the most common pesticides found in hives? 

> Wax from a broad sampling of brood nests from CCD and other US colonies was analyzed. In a total of 88 wax samples analyzed, 20 different pesticides including two of their metabolites were identified. As found in pollen, fluvalinate, coumaphos and chlorpyrifos were the most commonly detected pesticides.  -- What Have Pesticides Got to Do with It? Maryann Frazier, et al

Maybe these should be the first to go.

PLB

             ***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software.  For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html

Guidelines for posting to BEE-L can be found at:
http://honeybeeworld.com/bee-l/guidelines.htm