How in the world did you ever let it get that big in the first place ?Checked this morning, and it's dead as a door nail.
Scraped it down and it's sealed in an old plastic coffee can in the trash.
When I sprayed it at 11pm last night, I went out with it totally dark, with a flashlight with red film wrapping on it so they wouldn't see the light when I shined it on the nest.
Sprayed for about 8 seconds into the hole best I could and covered the nest.
THEN got out of there because it woke them up, I could hear the buzzing, and they were pissed!
Take care of it much sooner next time.