Irina, did you read the post I linked? I suppose if you don't have the LGO, your're probably not going to have Queen Mandibular Pheromone. LGO imitates a scent that bees put out when they fan. It's not the same as Lemon. If you can get to a GNC, or similar, you can get a little bottle of it for just a few dollars. A few drops will last a few weeks.
I can't say it will bring the swarm into the hive, but that is how the bees call out to each other to say, "It's here!". If you watch when they go into the hive for the first time, a bunch will stand in front of the entrance and expose the "Nasanov's" gland
. That could help.
The part that continues to confuse me is the QMP
. This reassures the colony that things are alright somehow.
As for the bees dropping, I'm assuming they're chillled from the rain. The main group in a cluster should keep warm and fairly dry. Schawee is right, he knows what he's saying. I'm working on you getting your swarm in that hive. I mean, you don't have anything to feel sad about yet! They're still where you can see them.
I caught a swarm at the first part of this season. First bees I have had, can look into, and actually work, since I was 21. I housed them in a deep box, reduced the entrance to 1 1/4 inches by 5/16 inches (32 x 8 mm), and started feeding. 16 days from that point, I walked out into the yard to see bees all over the place. They were everywhere! I got a nuc box, set it where I watched them settle, and clipped the branch, set it in the nuc, and set it where the rest could get inside.
I went in search of something, turned around, and they were flying off again! They landed about 10 feet away in the grass. I tried to get them back in another nuc box, but could only watch helplessly as they flew off, in a big cloud, into the trees never to be seen again. I think what we're saying is, "It's all a part of the game."