I think that I have identified the ants we have by your article. However, they are in the house, in the wall behind our bath tub faucets. So when you take a bath, the water flow noise apparently disturb them so they come out and then drop into the bath water. What is the best pesticide to use and what do you suggest is the best way to get to them to poison?? This is a most distressing problem with ants almost everywhere when you take a bath. I can hardly make myself take a bath and I have to scoop out dead ants prior to getting into the water!!! I will appreciate any help you can give us. Thank you in advance.
In most cases people are not aware of where the ants are nesting. In your case, you seem pretty sure where they’re living. In fact bathroom walls are one of the most common locations for carpenter ants to use. These areas are usually moist and at least humid which carpenter ants love. No doubt this is why they target the bath room in so many homes.
I recommend using the most direct approach possible. That means drilling some holes and pumping the DRIONE dust into the wall void. Drill between the studs all the way around the room. These holes can be above any water proof walls you might have. And don’t forget you can access this space from two sides. That means if there is a closet on the other side it might be easier to drill through that wall instead of the closet.
I also suggest doing a good dusting on the outside of the home. This should be done now and then in the spring I’d followup with some CARPENTER ANT BAIT and spray on the foundation. The BIFEN is a good product to use and if done throughout the year, you won’t have any chance of a reinfestation.
Here are direct links to the information and products listed above:
Carpenter Ant Bait: http://www.bugspray.com/catalog/products/page253.html