After decades of screwing around with sprays and gasoline this is the only thing needed. The powder isn't fast-acting, so hornets that get powdered spread it to the rest of the hive. It actually took the fun out of it. You don't need to dust the hornets, just where they walk or land.

[Linked Image from m.media-amazon.com]


Forgive me my nonsense, as I also forgive the nonsense of those that think they talk sense.
Robert Frost