On Thu, 10 Apr 2008 16:29:51 EDT, Jerry Bromenshenk <[log in to unmask]> wrote:


>That doesn't mean it has disappeared, but its not like it was 10 years ago,
>so I doubt that old studies of tracheal mite resistance in breeding stocks
>mean  much today.
>


Are you suggesting that the Russian stock is not as resistant as 10 years ago?  or merely saying that 
commercial stock resistance is not representative anymore of stock 10 years ago? 

I would think that given the hard work of what is now known as the Russian Honeybee Breeders 
Association that the same traits are intact. 

http://russianbreeder.org/

Its interesting to hear your observations and how tracheal can possibly flare up given environmental 
conditions. Form what you and others describe testing for nosema and tracheal is an important part 
of modern beekeeping now. 

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