> I`m a UK beekeeper and I have just discovered Varroa in my hives!
> I don`t like using hard chemicals and so the use of natural oils like
> menthol to control mites sounds interesting but what is Crisco and what role
> does it have in the process? Just a solvent? - are there any others?
So far, we don't have evidence that menthol is effective against
varroa. The menthol-Crisco mix is used in North America for *tracheal*
mite control.
Cheers,
Medhat Nasr, Ph. D.
Ontario Beekeepers' Association.
Guelph, Ontario,
Canada
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