House fly, is a well-known cosmopolitan pest of both farm and home. They are always associated with humans or the activities of humans.

They feed on fecal matter, discharges from wounds and sores, sputum, and all sorts of moist decaying matter such as spoiled fish, eggs and meat.

House fly breeds and multiplies anywhere if it has an access to waste products.

They are not only a nuisance, but also transmit diseases to humans, including typhoid fever, dysentery, cholera, poliomyelitis, anthrax, leprosy and tuberculosis etc.,