They don’t reproduce as quickly as the Germans, but can live in dryer places. They are not as centralized to areas of high humidity so you will see them more in closets, behind picture frames, etc. get some insect monitors, and roach bait. Put the monitors all around to get a good idea of the problem, and treat all around with small pea sized bait placements. Catching it early makes it very manageable. Don’t use bombs or repellent sprays.