German Cockroach

Natural Habitat

German cockroaches are one of the most common indoor cockroach species worldwide. They prefer warm, humid environments and are typically found in kitchens, bathrooms, and other areas where food and moisture are readily available, hiding in cracks, crevices, behind appliances, and inside cabinets.

Diet & Feeding

German cockroaches are omnivorous scavengers. They feed on a wide variety of food sources, including crumbs, spilled food, grease, organic waste, and even non-food items like soap, glue, and toothpaste.

Behavior Patterns

Cockroaches are primarily nocturnal and gregarious. They typically hide in cracks and crevices during the day and forage for food at night. They are known for their rapid movement. They undergo gradual metamorphosis, with nymphs hatching from egg cases (oothecae) and developing through several molts before reaching adulthood.

Risks & Benefits

Risks: German cockroaches are considered significant household pests. They can contaminate food and surfaces with bacteria (like Salmonella and E. coli), allergens, and other pathogens, leading to food poisoning, asthma, and allergic reactions. Their presence can also lead to an unpleasant odor and be a sign of unsanitary conditions. Benefits: There are no significant known benefits of German cockroaches in human-dominated environments; they are almost exclusively pests.

Identified on: 9/2/2025