Flies have been a major nuisance to humans and animals for thousands of years. Many transmit disease causing organisms and are linked directly to typhoid, cholera, dysentery, diarrhea, pinworms, roundworms, whipworms, hookworms and tapeworms. Most flies have filthy habits that make them efficient disease transmitters.
Disease causing organisms are picked up by flies from garbage, sewage, rotting debris, dead animal carcasses, animal excrement, etc., They are directly transmitted to us by way of their mouthparts or through their vomit or feces to our food, our food preparation surfaces, our sanitary items and to almost anything that we contact. Most flies lay their eggs in warm moist materials that will furnish a food source for the developing larvae (maggot). Animal and human feces, garbage, diaper bags, rotting vegetables, and even ground with excess organic matter will provide a suitable egg depository.
Once deposited the egg hatches and a larvae resembling a small yellowish worm called a maggot emerges. Fly larvae will normally pupate or form a hard brown colored pupa shell around their body in 4 -7 days. When fully developed the adult fly breaks open the end of the pupa shell and emerges. Adult flies are often ready to mate within hours of pupating. During warm weather, most flies can have 2 or 3 generations per month. The average adult fly lives about 20 days.
Physical Controls for Filth Flies :