Please don't take this wrong. But if you have had baits work on C. ants, then great, you are fortunate, and I am happy it worked. However, baits are NOT the preferred method of C ant control. Finding the nest and killing it is the only approved method. C ants are honeydew feeders and getting a bait to mimic that and getting them to respond to it is very difficult
The issue for us bug guys, is when a customer calls and says they have them, by the time we get there they are no where to be seen. I usually send the homeowner out on a scavenger hunt when they call to look for a trail. Usually there will be a line of them going from wherever they are seeing them right to the nest, and it is an easy kill. I get the homeowner to check simply because C ants are active at dawn and dusk mostly, and us bug guys can't usually be there at those times. If they don't see a trail, and I don't see ants at the time of the visit, they can be difficult to treat, and it is a shot in the dark mostly. Carlos's house is one of those prime examples. He tells me he is seeing them in 2 places. I ask him to go outside at dusk and look for trails, he doesn't see any. I get there 2 days later and don't see any live or dead.
Whatever you do, DO NOT spread around borax. There is a TON of bad info on the internet about using borax as a pesticide. Keep in mind, borax and boric acid are derived from the same thing, but have totally different properties. Borax has zero effect on insects. I do a lot of low income apartments. When a tenant has spread around "powder", I notate those units on my service invoice as such and have property manager sign off on it so I will not be held liable
Read this article on it. It explains it better than I can
http://www.thrasherpestcontrol.com/borax-fleas-and-misconceptions/
