On Fri, Sep 30, 2016 at 9:17 PM, Richard Cryberg wrote:

> Jaunse said that higher concentrations of formic on the bottom board would
> kill the varroa that fell off the bees as a result of formic exposure up in
> the hive.  I just do not think there would be a significantly higher formic
> concentration on the bottom than you found higher in the hive for strips
> placed on top of the bars.
>
> I have no opinion on how good formic strips would work if placed on the
> bottom board.
>

Me neather and I think we are talking flash treatment and not necesarily
strips. What I am saying  is that you get a better kill if you MECHANICALLY
ie. closing entrances and cracks, allow formic vapours to build up on the
bottom board. At least that is my understanding with formic acid use. I
have never used MAQs strips.

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