Posted by Judy on 18:51:22 8/5/2014 from 188.8.131.52:
Thanks for the informative website, John. We have one of the 'real problem' rooms that you've described. I have been observing since the beginning of summer when I discovered a steady stream of ants coming in next to the sliding glass doors. I thought I had stopped them, but noticed pink shavings coming down from the beam that spans the cedar sunroom. I really do not think we have a moisture problem, just a convenient place for them to nest in the pink foamboard in the ceiling. I think it would be impossible to keep them out completely the way that the room is constructed, next to the original brick exterior and a ridge vent in the roof. I placed some boric acid powder by both sliding doors to at least kill some of them, and two mornings later there were two lines of dead workers and winged ants directly under the beam(hundreds!). I'm not sure if this was a result of the Boric acid since I didn't put that much down. Today we just have a few foragers and a few empty cocoons around. I talked to an independent exterminator recommended by a neighbor and asked him if he could put Termidor into the ceiling through the openings of the can lights, or drill a hole to insert dust or foam. He said Termidor would not work if he did not put it in the exact place where the nest was, and that we would have to take the tongue and groove boards down to find the nest. He said he could treat the outside perimeter of the house with Termidor, but we would never be sure that they were gone without opening the ceiling. He also said Termidor was for outdoor use (but the BASF site says foam is ok?) We really hate to try to find someone to pull down the wood ceiling, since we still condsider this to be a new room! Just wondered what you would tell your customers.
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