Cockroaches are the one of the nastiest pests found in a home. Cockroaches may become a problem in homes, warehouses, offices, restaurants, hospitals or in any other structure that has stores or food preparation areas. These pests are known to transmit diseases since they carry bacteria from human excrement in sewers and pet droppings. German cockroaches in particular are believed to transmit disease causing organisms such as hepatitis virus, Staphylococcus spp. and coliform bacteria. They have also been associated with the spread of dysentery and typhoid. It is also believed that an infestation can cause allergens and asthma in some populations.