> Not sure it is that simple, -being either 'boom or bust'.
> There are natural fluctuations in any population that
> occur to varying degrees.
>

Insect populations tend to go through boom and bust cycles.The reasons
include pathogen cycles, in that a pathogen almost wipes out a population,
then the population grows to the point that crowding allow quick transmittal
and a bust occurs.

With bees, tracheal fits that very nicely. Big bust, gradual buildup when
Tracheal is not a problem then a bust. You need survivors for this to work
which is why Varroa has been such a large problem.

Formic Acid was originally used for Tracheal mites, so it serendipitously
takes care of two problems and adds to the myth that Tracheal is not a
problem and has been solved.

Bill Truesdell
Bath, Maine

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