Bait stations may be effective in controlling cockroaches if placed properly. Baits, however, rely on every cockroach in a population to feed on the bait before the infestation can be eliminated. Bait stations should be combined with other control efforts such as crack and void treatments to ensure the infestation is eliminated. Knowing where to apply each product effectively is where the experience of a professional is helpful. In addition, your professional will also look for any conditions that might contribute to cockroach infestations and make recommendations for correcting such conditions.