Oriental Cockroaches

Blatta orientalis
Pest Stats
Color: Shiny black
Legs: 6
Shape: Oval
Size: 1" long
Antennae: Yes
Region: Northern regions of the United States
Download the Oriental Cockroach Pest I.D. Card

Oriental cockroaches are believed to be of North African origin, despite their name. Oriental roaches are sometimes called “waterbugs” because they come out of drains, and “black beetle cockroaches” because of their smooth, dark bodies. They are known for their strong, unpleasant, “roachy” odor.

 



Habits

The Oriental cockroach feeds on all kinds of food, especially decaying organic matter and starchy foods. This species of cockroach can survive outdoors in freezing temperatures for long periods of time. 



Habitat

Outside, Oriental cockroaches are often found in sewers and under debris, leaves, stones and firewood. They will enter structures through door thresholds, under sliding glass doors, along utility pipes and through floor drains. Once indoors, Oriental cockroaches find harborage in basements and crawl spaces. 



Threats

Cockroaches like Oriental roaches have been reported to spread at least 33 kinds of bacteria, six kinds of parasitic worms and at least seven other kinds of human pathogens. Oriental cockroaches’ habit of feeding on filth means that they are likely to pick up germs on the spines of their legs and bodies as they crawl through decaying matter or sewage and then carry these into food or onto food surfaces.