This is a great way to deal with it. It also works really good when you have them in an attic and you can just see the hole they're coming out of. I'm not a huge fan of spraying poison into an area I'll be occupying. I usually run it for more than an hour. That way you get the ones that are leaving the nest and the ones returning.
rbrand wrote:
If you can get a Shop vac hose close to the entrance put an inch of water in the shop vac and a bit of dish detergent. Let it run for an hour. You will have most of them doing the backstroke in the shop vac. Then blast away.
Tape down the hose.
