Beatriz writes
Alpine Cockroach Gel Bait Rotation 2 Reservoir will be good for three years unopened and one year once the tube has been opened. It does take time for roach baits to work since the roaches have to consume it. We would also recommend doing a complete roach treatment with insecticide, such as Cyzmic CS, and an insect growth regulator, such as Gentrol Point Sources. Be sure not to spray the bait because that will contaminate it and the roaches will not consume it. Please take a look at our Roach Control Guide for information on how to treat and prevent roaches in the future.
Answer last updated on: 03/16/2017