Cockroaches need three things to establish a colony: food, water, and warmth. Humboldt's housing stock gives them exactly that. Housing ranges from historic mining-town construction to newer builds on wooded acreage, with crawl spaces and partial basements far more common than in the valley below. Combined with Humboldt's climate — a four-season climate at roughly a mile of elevation, meaning actual cold snaps and occasional snow that the low desert never sees — indoor cockroach pressure rarely lets up on its own.
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.