many years ago someone suggested throwing a long rope over branch in tree and fussed until both sides hung to ground --- attach a frame of brood and pulling one end -- raise it to swarm --- most bees and q will get on and then it can be re-lowered to ground and placed in hive and rest of swarm will follow --- sure enough it worked for me on several occasions when the bees were out of reach of ladder or sanity - smile - hope this will help someone with a swarm just out of reach.......