Double Control Small Roach Baits and Plus Egg Stoppers kill visible roaches and the ones you don't see. Baits provide relief from severe roach problems, killing them where they hide. Egg stoppers sterilize roaches that don't eat the bait, stopping them from reproducing to break the life cycle.Double Control Small Roach Baits and Plus Egg Stoppers kill visible roaches and the ones you don't see. Baits provide relief from severe roach problems, killing them where they hide. Egg stoppers sterilize roaches that don't eat the bait, stopping them from reproducing to break the life cycle.