The adult flies are about 6 cm in length, grayish in colour with four narrow, black strips on their thorax. Flies breed during spring and summer. One single fly may produce 600 to 900 eggs in one season and it takes only 10 to 12 days for the egg to develop into an adult fly. They are more numerous in August and September when they become active. Breeding normally stop in October and the winter months are passed in pupal stage. They breed in decaying organic matter and feed indiscriminately on manure, garbage, and food on our table. They contaminate everything they sit on, and spread many human diseases. They are carries of disease because they fly between human food and human faeces and other decaying after frequently, so much so that they fly from one place to another every 10 to15 minutes. Their feet have sticky pads where all kind of germs get stuck. Germs of deadly diseases like Typhoid, Dysentery, Diarrhea, Cholera, Ophthalmia, and perhaps even Infantile paralysis are carried by flies in this manner.
Applying pesticide spray at breeding places and thermal fogging for control of adult flies.Frequency of treatment depends on severity of housefly infestation.