German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Fort Irwin's an extremely hot, dry desert climate, with summer highs regularly topping 110°F and very low humidity keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. Stucco-and-block construction on concrete slabs is standard here, with irrigated golf-course landscaping common throughout.
We start with an inspection to identify the species and the source — sanitation issue, moisture problem, or entry point. Treatment centers on gel bait placed in cracks, voids, and under appliances, not broadcast spraying, since German cockroaches in particular have developed resistance to many surface sprays. A follow-up visit confirms the bait is working and the population is dropping.