> If my understanding from ABJ and research is correct, oxalic acid vapor is
> thought to kill varroa mites when the mite travels within the hive and gets
> the OA on its foot pads. So the vapor dispersal method works better than
> the dribble method because it covers the hive surfaces more thoroughly.
> (Please correct me if I’m mistaken.)
>
"Is thought to kill" is the key. From my reading the actual mechanism is
still not settled so any comparisons are assumptions. But that is always
fun to do.
Bill Truesdell
Bath, Maine
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