Hi Bob,
You wrote:>What chemicals have you used Roger and what types of problems have you
observed which you believe are caused by your use of a chemical to treat
varroa? Queen and brood problems?<

The chemicals we have used are:
bromopropylate
malathion
coumaphos
amitraz
flumethrin
fluvalinate
To control varroa -  and also PDB and napthalene for wax moth.
We used coumaphos in two periods: 1982-1986 and 2000-2003.  The problem really seemed to be closely associated with the use of this chemical.  Maybe it is the joint effect of coumaphos with one or more of the above chemicals.  However, bad cases of the problem can be found in many places around the world where coumaphos has been or is being used!
One thing, when/if Aethina tumida invades Cyprus, it will die as soon as it puts its foot thru the front door..........lol.
Best regards
Roger
Superbee Cyprus

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
-- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and  other info ---
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::