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Australian Cockroach

Identification

Behaviour

Signs of Infestation

Health Risks

Additional Information

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Identification

Physical description:
- Large, reddish-brown cockroach with a flattened body.
- Adults are typically 25-35mm long.
- Wings extend beyond the body, but they rarely fly.
- Have long antennae and prominent spines on their legs.
Habitat:
- Prefer warm, humid environments.
- Found both indoors and outdoors.
- Common in kitchens, bathrooms, laundry rooms, and basements.
- Hide in cracks, crevices, and behind appliances.
Feeding habits:
- Omnivorous, scavenging for food scraps, decaying matter, and pet food.
- Also, eat paper, cardboard, and fabrics.

Behaviour

Life cycle:
- Females lay egg capsules containing 20-30 eggs.
- Nymphs hatch and go through several moults before reaching adulthood.
- The entire life cycle takes about 6-12 months.
Activity patterns:
- Primarily nocturnal, most active at night.
- May be seen during the day if the infestation is severe.

Signs of Infestation

Visual signs:
- Live or dead cockroaches.
- Droppings (small, dark pellets).
- Egg capsules (brown, purse-shaped).
- Smear marks (dark stains left by cockroaches).
Behavioural signs:
- Musty odor, especially near harborage areas.
- Rustling sounds at night.

Health Risks

Potential health hazards:
- Can trigger allergies and asthma.
- May carry and spread bacteria, viruses, and parasites.
- Contaminate food and surfaces with their droppings and body parts.

Additional Information

Australian cockroaches are considered a significant pest in Sri Lanka.
They can be difficult to control due to their ability to hide and reproduce quickly.
A combination of sanitation, exclusion, and professional pest control is often necessary for effective management.

With over 50 years of trusted service, we bring expert pest management islandwide.

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