This guys feet didn't leave the ground. He had long metal tube, that reached up to the eaves, connected to a container of poison, complete with injecting mechanism. His parting words were " Make sure that you sweep your patio thoroughly, and don't come out in bare feet, as wasps have a habit of...
Had one in the eaves of our house. Been there 2-3 months, thousands of wasps. Local exterminator came around and puffed poison into the entrance to the nest and surrounding area. 2 hours later no wasps - fixed fee £40