Raid Double Control Small Roach Baits is an effective roach killer. Raid baits kill the roaches you see as well as the ones you don’t see with 2 types of baits. After roaches feed on the bait, they return to the nest and transfer the bait to the others, thereby killing the entire nest. Population reduction and less activity can be expected within days, with the roach baits working for up to 3 months. Kills roaches, palmetto bugs, and waterbugs.