Hi:
You may wish to go to the following site:
http://www.reineschapleau.wd1.net/articles/AV-BOTTOM%20BOARD.pdf
This is the final report on a study in Quebec Canada by Jean Pierre
Chapleau.
The report is titled:
"Experimentation of Ant-Varroa Screened Bottom Board in the Context of
Developing an Integrated Pest Management Strategy for Varroa Infested
Honeybees in the Province of Quebec"
Keith
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