"Joel F. Magsaysay" wrote:

>
> I have been keeping a rather hardy colony of bees (a.m.) in a two frame
> observation hive. Throuhgout 3 years, I have never applied any miticides or
> even substitutes (FGMO, etc.). No varroa!
>
> There are 5, 1 inch screened holes at the bottom of the observation hive. I
> harvest a frame of brood every two weeks, just to keep them from swarming.
> And, they have been ok for three years!



You seem to be implying the screened bottom of the hive might have
something to do with mite control. It would seem to me that removal of
brood every two weeks would have a much greater impact on the mite
population.

(just an opinion)


AL