Cockroaches

Cockroach identification and control

Cockroaches are not a single problem. A German cockroach infestation is a kitchen and appliance story. An American cockroach infestation is often a sewer, steam tunnel, or boiler-room story. Brown-banded cockroaches live higher in rooms and electronics. Smokybrown (smoky brown) cockroaches commute from trees and gutters in the humid South. Treating the wrong species with a consumer fogger usually spreads the population and contaminates air without touching harborages.

If you searched “how to get rid of cockroaches,” start with the cockroach guide, then open the species page. University IPM programs still win with sanitation, gel baits in cracks, and insect growth regulators — not weekly baseboard spraying.

German cockroach (Blattella germanica) — identification photo

PK-C01 · high risk

German cockroach

Blattella germanica

German cockroaches are small, tan, and indoor-only in the United States. Two dark stripes on the pronotum are the field mark…

American cockroach (Periplaneta americana) — identification photo

PK-C02 · medium risk

American cockroach

Periplaneta americana

American cockroaches are the large, reddish-brown insects people in the South call palmetto bugs. The name is folk language…

Oriental cockroach (Blatta orientalis) — identification photo

PK-C03 · medium risk

Oriental cockroach

Blatta orientalis

Oriental cockroaches are dark, greasy-looking, and slower than German cockroaches. Females have short wings; they are not built…

Brown-banded cockroach (Supella longipalpa) — identification photo

PK-C04 · medium risk

Brown-banded cockroach

Supella longipalpa

Brown-banded cockroaches are the ones that surprise people in a bedroom clock radio. They tolerate drier indoor sites than…

Smokybrown cockroach (Periplaneta fuliginosa) — identification photo

PK-C05 · medium risk

Smokybrown cockroach

Periplaneta fuliginosa

Smokybrown cockroaches are uniformly dark mahogany, slightly smaller than American cockroaches, and strongly associated with…

Asthma and cockroach allergen are a documented housing issue. HUD and EPA both treat cockroach IPM as a healthy-homes method, not a cosmetic spray.