Oriental Cockroaches

Oriental Cockroach

Scientific Name: Blatta orientalis


  • Appearance: The Oriental Cockroach is a medium-sized species, typically measuring one to 1.25 inches (25-32mm). Males possess wings covering about three-quarters of their abdomen while females feature only minimal, flightless pads on their wings compared to their counterparts in males.

  • Lifecycle of an Oriental Cockroach: Female Oriental cockroaches produce egg capsules (oothecae) containing approximately 16 eggs each; upon hatching from their egg capsules (oothecae), their offspring molt several times before reaching adulthood between six-12 months depending on environmental conditions.

Habitat and Behavior

Preferred Habitats: Oriental cockroaches prefer damp, dark, and cool environments. Common habitats include basements, crawl spaces, drains, and areas under sinks. Outdoors, they are often found in leaf litter, mulch, and around garbage cans.

Pest Profile Oriental Cockroach
  • Diet: These cockroaches are both scavengers and omnivores, feeding off various organic materials like decayed matter, garbage, and food scraps. They are particularly drawn to starchy foods.
  • Behavior: Oriental cockroaches are nocturnal and tend to hide during the day. They tend to be poor climbers compared to other species and are commonly found near ground level.


  • Oriental Cockroaches Can Pose Serious Health Risks: Oriental cockroaches pose major health hazards as they contaminate food and surfaces with pathogens like bacteria, viruses, and parasites that can cause gastroenteritis, diarrhea, and other illnesses in humans. They’ve long been recognized carriers for these bacteria causing infections like gastroenteritis or diarrhea which in turn leads to other illnesses arising such as gastroenteritis or dysentery in animals such as cats.
  • Allergens: Oriental cockroaches may trigger allergies and asthma in sensitive individuals due to their shed skins, droppings, and secretions which can trigger allergic responses and asthmatic attacks.

Control and Management

  • Sanitation: Maintaining cleanliness is crucial in managing Oriental cockroach infestations. Regularly remove garbage, clean up food spills, and eliminate potential food sources.
  • Moisture Control: Reducing moisture levels around the home can make an environment less appealing to cockroaches. By fixing leaky pipes and dehumidifiers as needed as well as providing sufficient ventilation, moisture levels may be decreased considerably and make living conditions unwelcoming for these insects.
  • Exclusion: Seal any cracks and gaps around walls, doors, and windows to block the entry of cockroaches into your home. Consider purchasing door sweeps as well as fixing damaged screens if necessary.

    Chemical Controls: Insecticidal baits, dusts, and sprays may help control populations; for optimal effectiveness and safe application it is wise to consult professional pest controllers.

Interesting Facts

  • Oriental cockroaches are also commonly referred to as “water bugs” due to their preference for moist environments.
  • Despite their name, Oriental cockroaches are thought to have originated in Africa, not Asia.
  • These cockroaches have a lower tolerance for cold temperatures compared to other species, making them more prevalent in warmer climates and seasons.

Summary Of Oriental Cockroach

Oriental cockroaches are a common pest that can pose significant health risks due to their potential to spread pathogens and trigger allergies. Effective management involves a combination of sanitation, moisture control, exclusion, and, when necessary, chemical treatments. Get ‘Em Out Wildlife Control understands that understanding the habits and preferred environments of wildlife can aid in preventing and controlling infestations.


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