> But I can tell you that drift can be substantial
between apiaries a half mile apart.
This was confirmed by our National Bee Unit just before varroa arrived here. They marked hundreds of bees in their home apiary and then went looking for them in their other apiaries. As I recall they were found in hives over a very large area.
Best wishes
Peter
52°14'44.44"N, 1°50'35"W
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