In a message dated 20/08/2007 13:29:25 GMT Standard Time,  
[log in to unmask] writes:

The fact  that all honey bee
colonies got varroa in such a short time almost  certainly confirms the idea
that every colony in the US is within the  flight distance of somebody else's
bees.



Those that aren't would soon get inbred; however I think the point Dave  
makes is that bees or queens are moved around vast distances in vast  numbers.
 
Chris



   

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