> This is what I would do. I would stay, and use the
> trickle method. This has
> effect 2 to 3 weeks. Works slower and longer then
> the vaporizing method.
> Remember worker brood is 12 days closed and drone
> brood 16 days. The Varoa
> on the bees are killed in 2-7 days.
> The oxalic will overlap a important part of the
> closed brood, so it will
> still kill most of the emerging varoa's.

I am not sure I understand.
Do you mean there will still be active OA solution in
hives after 2 to 3 weeks ? Or would it be because of
OA in bees hemolymphe ? May I ask your sources of
information ?
If OA solution trickling kills most emerging varroa
for 2 weeks, I would expect a high % of efficiency
even in brood period.


Hervé,
Laval, Qc, Canada






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