German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Erwinville's a climate shaped by the Mississippi River and Gulf of Mexico, with high year-round humidity and abundant rainfall keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. Housing here often sits on raised or pier foundations to manage flood risk, ranging from historic homes to newer construction.
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.