> a good sized operation, no treatments, has a solid reputation for 
quality bees.
 > http://southbeekota.com/RussianBees.html

Thanks for the link.

There are more using Russian stock, over long periods too, with good 
success.  At least a decade ago, Hubert Tubbs, Manley Bigalk and several 
others ran Russians with little if any treatment, and of course Charlie 
has done so for as long as I have known him.  See http://russianbreeder.com/

I am not certain why more don't do so, but I gather it has to do with 
economics.

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