One of my hives swarmed onto a small apple tree today. The swarm was on the trunk which also had many new suckers growing on it. I placed a sheet on the ground with a hive body on it next to the tree. The hive body also had some lemongrass swarm lure on it. I brushed the bees off the trunk after spritzing them with sugar water. They fell onto the sheet and began marching into the hive. Thinking all was well I left them alone to settle down. I came back an hour later to find them back on the tree trunk. I repeated the procedure; this time putting a couple of frames of honey in. Once again they started marching into the hive. Ten minutes later they were all back on the tree trunk. Because of the suckers on the tree it is impossible to brush all the bees onto the sheet. I can only guess that the queen is in one of the notches and never entered the hive. It is now dark and rather chilly, about 50 degrees. They are still clustered on the tree trunk despite the lovely accommodations I have provided right in front of them! Please Help! What do I do now?