Carpenter ants often inhabit wooden buildings and structures and can be responsible for major structural damage. Unlike termites, they do not consume the wood, but build "galleries" inside. Certain parts of a house, such as around and under windows, roof eaves, decks and porches, are more likely to be infested by carpenter ants because these areas are most vulnerable to moisture.
The control of carpenter ants involves the use of insecticides in various forms, usually a dust or liquid. The dusts are injected directly into the galleries and holes where the ants make their homes.
The liquid insecticides are applied in area where foraging ants are likely to pick up the chemicals and spread the poisons to the rest of the colony by carrying the material back into their home.