>we see the symptoms of Nosema and spring dysentery all over the hives
around their entrances

Christina, have you actually checked that dysentery for the presence of
nosema spores?  From the numerous samples that I've checked, I don't see a
correlation between dysentery and nosema (although in-hive dysentery would
certainly transmit nosema).  However, there does seem to be a correlation
between dysentery and amoeba cysts.

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

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