German cockroaches (Blattella germanica) are the most widespread and difficult cockroach species in Houston kitchens. A single German cockroach female produces 300+ offspring per year through rapid oothecae (egg case) production, and Houston's high indoor humidity creates optimal conditions for their survival and reproduction.
Why German Cockroaches Are Different
Unlike American or smokybrown cockroaches that may wander indoors from outside, German cockroaches are indoor obligates — they cannot survive in Houston's outdoor environment. Once established inside, they live in tight harborages near food and moisture sources: behind refrigerators, under dishwashers, inside cabinet hinges, and within appliance motors.
Why Over-the-Counter Sprays Fail
German cockroaches have developed resistance to common pyrethroid insecticides found in most consumer sprays. Even worse, contact sprays kill the individuals they hit but drive deeper cockroaches into wall voids where they continue breeding. The key to German cockroach elimination is gel bait and insect growth regulator (IGR) that reaches hidden colonies and breaks the reproductive cycle.
Professional Treatment Protocol
Licensed technicians apply gel bait at precise locations where cockroaches travel and feed — not randomly. The bait is consumed, carried back to harborage points, and shared through coprophagy (feeding on each other's feces). IGR prevents surviving nymphs from reaching reproductive maturity, stopping the next generation.