MuswellMetro
Queen Bee
I made a couple of open mesh floors to Graham Whites diagrams , modified slightly to allow more bee space under brood frames
John Wilkinson
i have one on my weakest colony and it is very defend able against wasps,
but even that caused a problem as being no guards out front to stop wasps activity around that hive , it became the hive that was attacked by Hornets who snatching the bees in mid flight just outside the hive. I assume becasue they felt they had a wasp free space and no guards fighting on the front