Cockroaches need three things to establish a colony: food, water, and warmth. Ben Lomond's housing stock gives them exactly that. Wood-frame homes dominate the older neighborhoods, while newer construction increasingly means dense multi-unit buildings. Combined with Ben Lomond's climate — a mild Mediterranean climate moderated by coastal fog, with cool, wet winters and dry, mild summers — indoor cockroach pressure rarely lets up on its own.
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.