Skip to main content


Open Main MenuClose Main Menu

German cockroach. Scientific Name

Blattella germanica



It is the most prevalent species in and around homes, apartments, supermarkets, food processing plants, and restaurants. During the day in houses, they hide in cracks and crevices such as under kitchen appliances, sinks cabinets, behind baseboards and moldings, in wall voids, pantries and similar areas of homes and restaurants. In commercial establishments such as food plants, warehouses, supermarkets, etc, they can be found in cardboard containers, wooden boxes, and under pallets. 


Life Cycle

German cockroach. The German cockroach breeds throughout the year indoors, but favors a humid environment and an average temperature of approximately 80°F. A life cycle can be completed in about 3 months. The German cockroach produces more eggs per capsule than other pest cockroach species, and its young complete their growth in a shorter period of time. Female German cockroaches carry their egg capsules until they are ready to hatch. The number of eggs in a capsule usually is between 30-40 and the average incubation period is about 28 days. Females at room temperature may produce 4-5 capsules. The time for nymphs to mature to adults averages 103 days. They progress through 6-7 nymphal instars in 60 days for males and 65 days for the females. Females may live for more than 200 days. 



Approximately 5/8 of an inch long and medium-to light brown color. The thorax will have dark long streaks. 



Please contact your local county extension office for current information. 

Back To Top