Originally Posted by
Shaggy Hiker
I watched a video about a professional removal of a very large nest. The guy used a shop-vac with a mixture of dish soap and water in it. The soap breaks down the surface tension, which quickly suffocates insects, since they breathe passively through spiracles in their sides.
Perhaps it was for the video, but they guy didn't just plant the hose over the entrance to the nest, but put it right beside the entrance, and occasionally beat on the ground to keep them coming out until all the flying ones were gone. He then removed the nest, showing the non-flying cohort that had other jobs in the nest.
However, I should also note that he had the full bee suit.