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Seen a number of posts on Varroa Mites lately, so I have been looking into the life cycle and methods to help reduce them.

In my searches I've seen references to humidity above 80% significantly reducing Varroa Mite reproduction. But I haven't heard of anyone using this as a type of treatment.

Has high humidity been verified to reduce mite reproduction?

If so, are there people using it as a treatment?

Are there less problems with Varroa in areas of high humidity?

I've seen Chalk brood fungus in my hives when humidity has been high. Wondering if it could be increased fungus growth that could be affecting the mites reproduction.
 

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When I was in Florida, which has extremely high humidity much of the year (we averaged 60+/- inches a year), I had just as many mite problems as I have here. Unless the moisture was running off the walls (which would create its own set of problems), I do not see humidity suppressing mite production, but I know of no formal studies of humidity vs mite production.

HTH

Rusty
 
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