German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Paulden's a mile-high chaparral climate with genuine four-season weather, hot summers, cold winters, and occasional snow, milder than the low desert year-round keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. This area's elevation means basements and crawl spaces are common, a real contrast to the slab-only construction of the low desert.
Treatment starts with locating the harborage points — the tight, warm, food-adjacent spaces roaches actually live in — and applying gel bait directly there rather than spraying open floor space. This targets the colony at its source and avoids the resistance issues that plague over-the-counter sprays. We follow up to verify the population has collapsed, not just scattered.