I hate to see you kill off valuable honey bees. We have too few of them le ft.
We let a friend put his hives in our yard years ago. Some imelater, they sw armed. Amazing sight! My plum tree was wrapped in layers of bees, clingin g to each other. Very peaceful. After a while, I assume the Queen gave th e signal, because they all moved out to their next place of residence.
Not knowing your situation, is there any way you could hang in there until they swarm?
HB