Talk:Queen excluder

Size
As a non-beekeeper, I found the exact measurement surprising. Is there no variation in the measurement for different bee varieties? Can someone explain why in the article? Tempshill (talk) 05:58, 11 February 2008 (UTC)

"Ukrainian inventions" requires a source
The inclusion of the "Queen excluder" in is interesting, but there's not even a mention of this in the article itself. If no source can be found, the category template should be removed. yoyo (talk) 14:07, 18 June 2016 (UTC)