You guys must have tougher hornets out there. My preferred method is to go out at dusk, stand back and start spraying the entrance with Raid. Hornet and Wasp. I usually have a spare in case the first one fails. The hornets get good and soaked as they exit and fall to the ground. Another method on smaller nests is to take a 4' stick of firewood about 6" in diameter and crush the nest. Then there was the time that they had nested in the business section of my mower... when I engaged the PTO there wasn't much left of them.