Hello Dee & All,
The moving of hives when bees are flying  to lose the old workers has 
little to do with varroa control but might add some control in the 
broodless period but would not help beekeepers in the area with their 
varroa control as those bees might would find their way into those hives.

The method is used to reduce the feed costs on hives after a major honey 
flow and if done at certain times leave only young bees for winter.

Plenty of methods are used in commercial beekeeping which are not written 
in the current bee books so those with knowledge only obtained from those 
books are not aware of those methods.

For those considering commercial beekeeping ( as currently practiced by 
most in the U.S.) working a year or two with a commercial beekeeper before 
starting can increase your chance of success . In my opinion better than 
all the books currently on the market put together.

Sincerely,
Bob Harrison

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