Bayer Carpenter Ant and Termite Killer Plus Concentrate is a liquid product that kills wood-destroying insects like carpenter ants and termites as well as 75 other pests. Bayer Carpenter Ant and Termite Killer Plus Concentrate that not only kills on contact but also leaves long residual protection, making it an economical and smart choice to get rid of hard-to-control insect pests. It can be used on lawns, landscapes, foundations, decks, patios, woodpiles, and wood structures.