General Question whilst resistance exhibited by Varroa is topic!

Are treatment using various acids and the like to deplete varroa population levels expected to fail
in the future?

As I understand it, the successful use of such materials depends on their chemical properties to
"physically" attack the body components.
ie. corrosion, denaturisation of tissues etc, rather than compromising metabolic reactions.
I realise that there maybe a fine line between the two treatment strategies.

Talk has been around that varroa mites are showing resistance to Oxalic acid treatment (rumour?)
via. increased ability to hydrolyze the acid.

Bob mentioned that Apistan success may be covering up limited success of Thymol (various
formulations) treatments.
But, by rotation, Thymol may be limiting the build up of mites resistant to Fluvalinate (basis
behind rotation of treatments!).
But if resistance to thymol is not expected or at least will be long in the coming, it is a good
move in theory.

Have Acarine mite ever shown increased resistance to the treatments that are used to control their
population levels?

Regards
Peter

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