German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Karval's a semi-arid climate with over 300 days of sunshine a year, hot summers, cold winters, and dramatic day-to-night temperature swings keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. Wood-frame homes with basements dominate here, built for the region's cold winters and dry climate.
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.