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Home » Pests » Oriental Roaches

All About Oriental Roaches

Everything You Need to Know About Oriental Roaches
Oriental Roach

Quick Facts about Oriental Roaches

Scientific Name
Blatta orientalis
Preferred Habitat
Damp, dark areas
Common Nickname
Water Bug

Oriental Roaches Identification Guide

Physical Characteristics

Oriental roaches, commonly known as "water bugs," are large, dark brown to almost black in color, and grow to about 1 to 1.25 inches in length. Unlike other roaches, they have a shiny, almost oily appearance. Males have short wings that cover about three-quarters of their body, while females have even shorter, undeveloped wings. Neither can fly. They are slower-moving roaches compared to other species and are often found in damp, humid environments.

Common Species

Blatta orientalis (Oriental Roach) – The most common species found in basements, crawl spaces, and areas with high moisture.

Oriental Roaches Behavior and Biology

Oriental roaches thrive in damp, dark areas such as basements, sewers, and crawl spaces. They prefer cooler environments and are more active in the spring and summer months. Their diet consists of decaying organic matter, garbage, and food scraps. Unlike German roaches, they are not as dependent on indoor environments and can often be found outside under leaves, mulch, and in sewer systems.

How We Treat for Oriental Roaches

When treating for Oriental roaches, our technicians focus on the following steps:

  • Inspection: A detailed inspection of basements, crawl spaces, and other damp areas to identify signs of activity such as droppings or live roaches.
  • Treatment: Application of repellent and non-repellent insecticides inside and outside the home, targeting cracks, crevices, baseboards, and entry points.
  • Moisture Control: We advise homeowners on reducing humidity by using dehumidifiers, fixing leaks, and sealing gaps around pipes and drains.
  • Preventative Maintenance: Regular treatments to prevent future infestations, as Oriental roaches thrive in high-moisture environments.

Common Questions about Oriental Roaches

Where do Oriental roaches come from?

They typically live in damp outdoor environments such as leaf piles, mulch, and sewer systems. They enter homes in search of moisture and food.

Why are they called water bugs?

Because they are often found in damp, wet areas like basements, sewers, and crawl spaces.

Can Oriental roaches fly?

No, they have wings but cannot fly. They rely on crawling to move around.

How do you get rid of Oriental roaches?

We perform a full inspection, treat entry points with insecticides, and provide moisture control recommendations. Regular maintenance is key to keeping them away.

Do Oriental roaches carry diseases?

Yes, they can spread bacteria and pathogens by crawling over food surfaces and through unsanitary areas.

How long does it take to eliminate an Oriental roach infestation?

Results depend on the severity of the infestation, but with proper treatment and moisture control, improvements can be seen within a few weeks. Regular maintenance prevents reinfestation.

What should I do if I see one?

If you spot an Oriental roach, there may be more hidden nearby. Contact us for a professional inspection and treatment plan.

Find Local Oriental Roach Control Services

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