German Cockroach

Scientific Name: Blattella germanica

Order & Family: Order: Blattodea; Family: Ectobiidae

Size: 1.1 to 1.6 cm (0.43 to 0.63 inches)

German Cockroach

Natural Habitat

Exclusively indoors, typically in warm, humid areas such as kitchens, bathrooms, and laundry rooms. They prefer cracks and crevices near food and water sources.

Diet & Feeding

Omnivorous scavenger. They eat almost anything, including human food, pet food, grease, soap, glue, and book bindings.

Behavior Patterns

Nocturnal and highly gregarious. They reproduce faster than any other residential cockroach; a single female can produce thousands of descendants in a year. They are known for their ability to hide in very small spaces and are rarely seen during the day unless there is a heavy infestation.

Risks & Benefits

Significant health risks as they carry pathogens like E. coli and Salmonella. Their droppings and shed skins contain allergens that can trigger asthma attacks, especially in children. They offer no benefits to the indoor environment and are considered a major pest.

Identified on: 2/20/2026