Hi Bob:
Sofar, we don't have evedience that menthol is effcetive 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
> Hi,
> > 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?
>
> Yours
> Bob
>