Peter said: *Colonies that are weakened by pathogens are more susceptible to environmental pollution.* Peter, I'm not understanding your point here. Are you talking about the recent Pettis quotes that apparently indicate a synergy between imidacloprid and nosema- that "undetectble" levels of imidacloprid can enhance susceptibility to nosema ? If so, then isn't your statement putting the cart before the horse ? Shouldn't we interpret this unpublished research to mean that "Colonies that are weakened by environmental pollution are more susceptible to pathogens"? Not the other way around. I'm just a dumnbunny physicist here and out of my league. So a little help would be appreciated. Thanks, Ernie Huber *********************************************** 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