Cockroaches need three things to establish a colony: food, water, and warmth. Susan's housing stock gives them exactly that. A blend of historic river-town homes and dense coastal development shaped by the region's military and shipping industries. Combined with Susan's climate — a humid climate with a long, hot summer and winters mild enough that snow is inconsistent — 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.