> Very short NO in my opinion! I have been using open mesh flours for
> more than twenty years now, and I have the same troubles like every
> one else with Varroa. Open mesh flours is in my opinion only for
> ventilation.
I wonder, Jorn, if you use screen floors that are same size as the
bottom of the brood box or if you use the smaller screens -- 10 cm x 10
cm or so -- that are poplular in northern europe?
What size are your screens and what mesh do you use?
allen
http://www.honeybeeworld.com/
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