Advion Cockroach Bait Arena contains cockroach bait material that contains the active ingredient indoxacarb, an insecticide that acts through ingestion by cockroaches. The activity of this insecticide allows adequate consumption of the bait by cockroaches prior to onset of mortality. Advion Cockroach Bait Arena can be used indoors to control cockroach populations. Arenas should be placed in/or near cockroach harborage areas or areas known to be frequented by cockroaches. Outdoors, bait arenas should be placed adjacent to structures.