Odd question: If you completely sealed off the entrance to a hive that was imminently planning on swarming, what would be the eff
you should close the hive with excluder.
50 y ago "excluder prisons" were usual to keep swarm at home.
One guy left home 3 for weeks and he asked how to prevent swarming.
I told that make a false swarm to those 3 hives before you leave.
So he did and everything was ok whenhe returned.