Where to look for them
Found primarily in kitchens and bathrooms, German cockroaches are the most common roach found in homes, apartments, grocery stores, food processing plants and restaurants. Their harborage sites include warm humid areas, electrical equipment, paper materials and cracks or crevices found in wooden materials.
Even ships are not immune to infestation by this pest. Though commonly found near daily access to water, if sanitation is poor, German cockroaches can expand their harborage throughout a structure.