I have found the Rosenkranz paper to be very helpful. "Biology and Control of Varroa destructor". http://www.ask-force.org/web/Bees/Rosenkranz-Biology-Control-Varroa-2010.pdf *********************************************** 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