I once killed a garage full of hornets with 3 novelty smoke bombs I bought from one of those shitty fireworks stands (4th of July fireworks)
They have the tube ones and the little ball ones.
I'm talking about the tube ones.
About the ball ones- those are great to smoke out a fox hole or snake hole. They either run out or die of asphyxiation.
got a bb gun? if not tape a sharp knife to a broom stick and get his ass when he runs out
good luck