Ants hate talc.
Don't fuck about with expensive ant poison and traps: Ants hate talc. It sucks the water out of them and kills them and covers up the smells they left so they know where they've been.

Find where they are getting in to the house, squirt cheap talc everywhere around there and down their trail to the kitchen or wherever they've got to, then a few hours later hover it all up.
(MrOli is ugly, but in the morning you will be sober, Wed 3 Aug 2011, 9:08, 1 reply, 13 years ago)

Should you find the nest, pour washing up water down it.
The surfactants in washing-up liquid stop bubbles forming around the ants and allow the water to drown them -- I've a feeling that some other ingredients are toxic to ants too but don't know the chemicals or the reasons, does work though.
Oh, and thanks for the talc tip -- I'm now wondering if it works on spiders also.
(Me, I'm not... in any way intoxicated, Wed 3 Aug 2011, 18:25, Reply)