D. Graham on June 09, 1998 posted the subject:  Summer Treatment for
Varroasis Widely Used in Europe:  Comments, Suggestions, Alternatives
Invited.  I wonder if he would take a few questions to help us better
understand the process he describes?
 
1.  Since this is a summer treatment at 15C (59F), how many combs of bees
might be in the "not strong and very strong" colonies?  (Langstroth or
equivelent)
 
2.  What procedure is used to determine mite levels in the colony, prior
and post fumigation?
 
3.  What is the recommended mite level that triggers fumigation?
 
4.  A repeat fumigation process is indicated if mite fall is more than 5
mites per day.  Is this considered by beekeepers to be the economic
threshold for Varroa?
 
5.  How much time is expended in the preparation, the three manipulations
of the hive and colony, and replacing the supers, which completes the
fumigation of the sealed and open brood combs?
 
Thank you.
 
James C. Bach
Yakima WA
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