Re: ants gotta drink too....
I don't have good luck with the borax-based baits...they seem to ingest them and keep on going. The Combat and other Fipronil-based gel and solid baits seem to work well, and as mentioned earlier there are some other slow-acting baits that work by a similar action. There was another really good sulfuramid bait that was made by FMC, but they don't seem to make that anymore.
"Spray it like you mean it!"