Domino Gel Bait is a scientifically tested ready to use gel bait to control all common species of cockroaches including American, Oriental and German and their nymphs. Ant and cockroach gel baits contain the same active ingredients. These pesticides are also effective against ant colonies. The gels are placed along ant trails and other areas that are infested with ants. The ants eat the gel, then take it back to the nest to share, spreading the pesticide through the entire colony.