Physical Characteristics

The adult German cockroach ranges in length from 1/2 inch to 5/8 inch. Its body is light brown to tan in color, with two longitudinal brown bands on the top of the pronotal shield, which covers the back of the head. Bodies are oval in shape.

German Cockroach

German Cockroach


The German cockroach is the most common of roaches, the one most likely found inside homes, offices, restaurants and other structures. This insect prefers warm and humid places, like kitchens and bathrooms. Infestations occur in areas where people eat, drink, watch TV and even sleep, making any food and/or water source a prime area of harborage. The German cockroach is not only a nuisance but has been known to carry disease-causing germs, along with germs and allergens known to trigger asthma.


Sanitation is the cornerstone to effective long-lasting control of the German cockroach. This requires cooperation of the people living in the home as well as a complete interior treatment by a pest-management professional. Conditions conducive to roach infestations need to be removed, and items in pantries and cupboards need to be removed to allow access to the harborage for the technician. Your Clark technician will advise you on what you can do to help alleviate the problem, as well as determine the best means of control.

Latin name: Blattella germanica