>>From: dthompson: ....probably because ccd spore is so long-lived >This is "assuming" that the CCD is caused by one organism. No assumption, rather the observation that 2 yr old dead-out boxes restart the problem. Nearly evey BK with "ccd experience" will agree And anyway the few posts previous are debating if it is possable to eliminate nosema from any yard, I'm inclined to think not My bees have had 5 seperate tests showing zero nosema (over 1.5 years). Kind of pointless to feed fumigillan in this case However when I bought a new queen I used up almost a whole (small) bottle on that nuc (as well changed cage & no attendants) dave *********************************************** 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