The German cockroach is the most common species of the cockroach. German cockroaches can breed at a rate of up to six generations per year. The German cockroach can fit through an opening as small as 3/8 inch in width.
German cockroaches will feed on almost anything, including soap, glue and toothpaste. German cockroaches are good hitchhikers and often find their way into new structures via grocery bags, cardboard boxes, drink cartons and secondhand appliances.
German cockroaches prefer to live in warm, humid places close to food and moisture sources. They are frequently found in residential and commercial kitchen environments, and bathrooms.
In addition to being a nuisance, the German cockroach has been implicated in outbreaks of illness and allergic reactions in many people. Cockroaches 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. They can 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. Medical studies have shown that German cockroach allergens cause allergic reactions and can exacerbate asthma attacks, especially in children. This makes German cockroach control incredibly vital.