In order to eliminate carpenter ants nesting indoors, you need to locate and destroy their nest. To prevent the possibility of reinfestation, eliminate damaged or decayed wood and correct moisture problems. You can increase your chances of following workers to their next by setting out food that is attractive to carpenter ants. Place food in areas where you find workers. Baiting carpenter ants is most effective when food is set outdoors during spring and summer.
Many foods are attractive to carpenter ants, including honey or another type of sweet food.
During spring, carpenter ants are particularly attracted to protein sources, such as live insects. If you cut an insect into pieces, it is easier to follow the ants when they are carrying part of an insect. As carpenter ants take the bait, you can follow them, with patience and perseverance, as they return to their nest. These are possible sources of carpenter ant nests. Sound detection may be helpful in locating a nest.