>
> >How long do your queens survive?


Don't know--I don't mark them.  We split all hives in spring, while the old
queens are going gangbusters, and keep the good old queens in splits
(probably 2/3rds of them).  They lay up the splits like mad.   I can't
guarantee how long they survive, but I also don't really care, since queen
issues are not a problem for us--only a few percent of colonies ever go
queenless.

FWIW, it appears to me that thymol is much tougher on a colony than is
oxalic (we've used Apiguard gel at half dose for several years).

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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