Reference JBJ. "bee repellant will drive the queen out in a trapping situation"
True, however she may just fly away if you drive her out,(and take the bees with her), and you don't get bees to make starts if you drive her out. and she flys away with the colony. I can't remember ever getting a queen to come through the screen cone method, since she would be leaving her hive, and normally that just doesn't happen. In that method (screen cone funnel method) what most often happens is, you weaken the colony until it can no longer support itself and it dies. Since the swarm harvester is a sealed, integral part of her colony, she will move back and forth between the feral colony(tree, old car, house, etc) and the trap to lay eggs, since the trap is nothing more, nothing less, than another chamber to lay eggs in. It is just part of her hive.
I hope this info has been helpful. As any of you start trapping this year, I would be interested to hear your experiences. cchoganjr