A snip
Is there really any question that extra hive transfer is common?

My comments...
Just off the cuff there would seem to be an number of other explanations for what might appear to be random spikes in varrroa numbers. 1) ineffctive varroa treatment via varoa resistance, 2) varroa treeament applied at the wrong tempraure, 3) appied when there is extensive brood in the hive, 4)impropeerly mixed home made remedies, 5) old off the shelf remedies, etc.

All of this is not to suggest that the litle buggeers do not have a means to move around as individuals but it would appear to me there is a lomg list of other likely suspect if the problem you are cnsidering is random spikes in varrroa numbers in samples.

             ***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software.  For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html