American Cockroach

Periplaneta americana

Large reddish-brown cockroaches, often called "palmetto bugs" in the South.

Insect High Risk

About American Cockroach

American cockroaches are the largest common cockroach species in the U.S., measuring 1.5 to 2 inches in length. Despite their name, they likely originated in Africa. They're reddish-brown with a distinctive yellowish figure-8 pattern behind their head. These cockroaches prefer warm, dark, humid areas like basements, sewers, steam tunnels, and crawl spaces. They can fly short distances. Adults live 1-2 years and females produce 150+ offspring in their lifetime. They're commonly found in commercial buildings, sewers, and residential basements.

Identification

Very large (1.5-2 inches long). Reddish-brown color. Yellow figure-8 or hourglass pattern behind head. Long antennae. Both sexes have wings and can fly. Six spiny legs.

Signs of Infestation

Large roaches seen at night, especially in basements or bathrooms. Dark droppings that look like mouse droppings. Brown, oval egg cases in dark areas. Musty odor in heavy infestations. Roaches in drains, sewers, or crawl spaces.

Health & Safety Risks

Like other cockroaches, American cockroaches spread disease-causing bacteria and pathogens. Their droppings trigger asthma and allergic reactions. They contaminate food and food preparation surfaces. Can transmit Salmonella, E. coli, and dysentery.

Prevention Tips

Seal cracks in foundation and around pipes. Fix moisture problems and leaky plumbing. Remove harborage sites like cardboard boxes. Keep basements dry with dehumidifiers. Seal garbage cans tightly. Clean up food spills promptly. Maintain door sweeps on exterior doors.