Jan Tempelman wrote:
Dear Jan:
This is a magnificent example of a research project.
However, it does not take into consideration that the VARROA infested
bees will take their mites with them while foraging and that as every
beekeeper in the entire world knows, bees have a tendency to stray into
other (than their own) colonies
and thus transfer their mites to new colonies.
     Since the proponents of this method do not use any other form of
controls for Varroa mites, I would have to think that their practice is
contributing to the spread of Varroa!
     Also their method seems more expensive, more complex and labor
intensive than applying mineral oil to the frame's top bars. Be your own
judge.
Best regards.
Dr. Rodriguez
Virginia Beach, VA (USA)