Fire ants are definitely very common, that is true, but from what I've seen= and read the type of outbreak we have is rather atypical. Even the folks = at our local county ag extension office haven't heard of such an indoor inf= estation of fire ants like we have before. Our bug guy treated the ants as= if they were coming from the walls by baiting outside and spot spraying in= side, and we've not seen one single ant in the yard since... so yes that is= working. But in our situation they're under the house which takes more wo= rk. Until we found the massive line of ants from the sand trap there never= were trails to bait per say. I would see a few here or a few there, but t= he few trails I saw were always at night or early in the morning when the b= ug guy wasn't around.
But Termidor in the sand traps has worked with the infestation, but given t= here's still paths for ants to come in through the pipes in the foundation = (and their enzyme trails are now all over the place) we still have worker a= nts coming in all too often. So hopefully with more aggressive chemicals u= sed in the walls where the pipes are that'll kill the few worker ants that = do try to make it in and hopefully detour them all together eventually. I = don't know how long it takes an ant colony to die out without water or food= , but given they have zero ways to get inside hopefully they'll move elsewh= ere if the bait outside doesn't do the trick sooner.