German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Lyon's a hot, humid Delta climate where high water tables and flat terrain keep moisture-driven pest pressure elevated most of the year keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. A mix of older wood-frame farmhouses on flat Delta farmland and modest ranch homes in small town centers, many with crawl spaces vulnerable to moisture.
Because sanitation and moisture are almost always part of the problem, our process pairs targeted gel-bait treatment with a review of what's drawing roaches in — a leak, exposed food storage, cluttered voids. Broadcast sprays just scatter a colony; bait placed at the harborage site eliminates it. A follow-up visit confirms results.