Does anyone have any experience with these. They look like a darn good idea to me, but I am a beginner. They work on the same premise as the Beetle Baffles. One area of concern I have is if a hive makes a new queen and she leaves on her mating flight, could she easily get back in? Also, I worry about ventilation and OAV treatments. Probably would have to come off for the OAV.
https://www.facebook.com/Clarks-Beetle-Blocker-Shim-1658549304395025/
I like the idea. But I like this idea better because you can make them your self to fit what ever your setup is. Plus more cost effective .
John
http://www.beemaster.com/forum/index.php?topic=49081.0