> I based my statements on recent work from our region (northeast US)
> Nosema and Honey Bee Colony Health
> Brenna E. Traver, Richard D. Fell
> Virginia Polytechnic Institute and State University

But this is merely a Virginia Ag Extension pamphlet. These are suggestions,
not findings.
http://www.pubs.ext.vt.edu/ENTO/ENTO-66/ENTO-66-pdf.pdf

An ag extension pamphlet does not carry the same weight as a major year-long
study by MacArthur Fellow Dr. ReDisi, and his team.

My operation was in Virginia, so I've seen the work of the VA Ag extension
for decades, and the pamphlet cited simply states that because we don't know
enough yet, beekeepers may not want to incur the expense of Fumagillin
treatments in fall.
("Disease levels are low during the winter, limiting the need for fall
treatment, and the use of Fumagillin is expensive and can be time
consuming...")

If one looks at Figure 2 in the DeRisi paper, one finds slightly LOWER N.
ceranae levels in June and July than in Nov/Dec/Jan, and this was one brood
cycle after all hives were requeened.  To attempt to hand-wave it away is to
ignore what may be a significant factor, with unexplained factors left and
right.  We don't know, and we should not be complacent.

             ***********************************************
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