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Carpenter ant baits are a relatively new tool in the structural pest control arsenal. These baits are not the same as baits made for small household nuisance ants and, in fact, most nuisance ant baits are generally not useful for carpenter ants.

Carpenter ant baits should be used in conjunction with other more conventional control methods like wall void and perimeter sprays (see How To Control Carpenter Ants). If used alone baits may not be 100% effective in all climates.

Carpenter ant baits are made from a food that attacts worker ants plus an insecticide. Worker ants find the bait and carry it back to the nest where it is consumed by other ants and the queen thus killing the whole colony.

The best use of baits may be in situations where conventional insecticides cannot be used. One example might be to use baits indoors where we would not recommend conventional insecticides. Baits should be placed where foraging ants will find the bait.

Since carpenter ants often forage indoors during spring, when nests are coming out of winter dormancy, baits could be used to get a start on colony control. Another use is in situations where conventional insecticides can never be used such as around water wells.

Carpenter ant baiting can be a DIY project in conjunction with a more conventional treatment such as wall void or perimeter sprays.

Professional carpenter ant baits

There currently are three popular carpenter ant baits, two granular formulations and one gel formulation. All three baits are available online. Which one is best? They will probably all work pretty well when used carefully following product instructions regarding bait placement.

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