Nosema and dysentery may be a chicken and egg situation.  The most
efficient way for nosema spores to be transmitted in the hive would likely
be via dysentery within the hive.  Thus, colonies suffering from dysentery
would be more likely to also suffer from nosema.

Eric Mussen told me that he remembered seeing dysentery in caged bees
suffering from N apis.  But unfortunately, he wasn't specifically running
experiments to see whether that was the causative factor (I often observe
dysentery in caged bees, depending upon diet).

Jerry, have you, or do you know of any cage studies in which test bees were
infected with N apis, and compared to control bees for the development of
dysentery?

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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