Fact Sheet 2109 gives details on preferred foods, sites and sanitation measures for control. It also provides a homemade trap and suggests appropriate insecticides. They can be very persistent pests once populations become established in a dwelling. This happens because roaches can live long periods without food. The most common roach in urban areas is the German cockroach.
German roaches live throughout dwellings, but are often found in kitchens and bathrooms.
Because this roach produces more eggs and generations per year than other roaches, it only takes a few roaches to develop quickly into a major infestation. If German roaches are seen by day, it means that a large population exists and all hiding places are taken. Fact Sheet 2099 provides information on identification and control of this roach, Reference Ento.10. Another type of roach, the oriental cockroach, prefers damp areas and lives both indoors and outside. In dwellings, these roaches can be found in locations where there is dampness or moisture.