Pest Organisms / American Cockroach
Treatment
Work an IPM program, not sprays alone. UC IPM anchors control in sanitation, exclusion, and well-placed baits and dusts. Because this species ties back to sewers, drains, and outdoor cover, aim at those sources: UC IPM recommends outdoor baits around the building perimeter, including inside valve or water-meter boxes and near woodpiles and planters, and notes that treating harborage may be warranted when populations are high and roaches are moving indoors. Penn State reports baiting as an effective way to control or eliminate them. Source: https://ipm.ucanr.edu/home-and-landscape/cockroaches/ Source: https://extension.psu.edu/american-cockroaches
Whatever product goes down, follow the label: EPA states that using a registered pesticide inconsistent with its labeling violates federal law, so the label governs legal use. Source: https://www.epa.gov/pesticide-labels/introduction-pesticide-labels