Re: Swarm mitigation: vacuum?
100% agree with Eikel. The artificial swarm technique is your only real hope of preventing a swarm if one is in the making. Vacuuming up a bunch of random bees and moving them just won't work. Find the queen, grab a few frames of capped brood and put them in a nuc with the queen and a frame of stores. Shake in another frame or two of nurse bees from frames of open brood and you are good to go. A week later, cull all but two of the queen cells the bees will make in the original hive to keep them from creating an after swarm.
Thankfully, the bees are smarter than I am. They are doing well, in spite of my efforts to help them.