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bottom screen for top bar hive?

 
Posts: 61
Location: southeast SD (zone 4b/5a)
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What size do you use? I read one person saying 1/8 in. openings. I can only find 1/4 in hardware cloth and 1/16 in. window screen. Is 1/16 in too small fro varroa to fall through?
 
pollinator
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Location: Anjou ,France
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I would suggest 1/16 is too small . Can you fix two layers of the 1/4 offset so as to be 1/8

David
 
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