I have never dealt with this issue. The swarms and cutouts I have done were pretty straight forward.
I have a friend who in his woods has a tree with an apparent hollow area in it.(close to house) It has held Honey Bees for approx 3 years. It seems it is getting bigger, and now his Wife wants them removed, and not hurt the tree either. The entrance is approx 30 feet from the ground. I have no way to get up there, with anything.
The question is, has anyone had any luck placing a super on a stepladder or something on the ground, and somehow luring them in with maybe lemon grass? I am looking for ideas so that this may become a win win situation. I would think it is hard to get them all coaxed out?