16 Dec 2016

House Fly


The House Fly, Musca Domestica is one of the most annoying domestic flies. The House Fly is a widely distributed insect, found all over the world.

This fly is a public health vector and a carrier of serious diseases. The Flycatcher ribbons are a very useful tool to combat fly at home.

OVERVIEW

The adults are 8–12 mm long. The females are slightly larger than the males, and have a much larger space between their red compound eyes. The mass of pupae can range from about 8 to 20 mg under different conditions. Each female fly can lay approximately 500 eggs The eggs are white and are about 1.2 mm in length. Within a day, larvae (maggots) hatch from the eggs and are pale-whitish, 3–9 mm long. At the end of their third instar the maggots crawl to a dry cool place and transform into pupae, coloured reddish or brown and about 8 mm long. The adults live from 2-3 weeks. The flies reproduction depend on warm temperatures; generally, the warmer the temperature the faster the flies will develop. In winter, most of them survive in the larval or the pupa stage in some protected warm location.

It is largely as a result of their indiscriminate feeding habits that houseflies spread disease. They may settle and feed on decaying organic matter which contains many bacteria. If later the flies alight on food for human consumption, harmful bacteria are deposited on it. There are many ways in which the bacteria may be carried.

They may adhere to the hairs on the fly’s legs or body; they may remain in the pseudotracheae or oesophagus, to be flushed out on to food with the next salivary flow. They may be deposited in vomit spots of semi-digested food which has come from a source of infection, or the bacteria may enter the digestive system and pass through it, unharmed, and fall on food with the faeces of the fly. Housefly is a vector of many parasitic, viral and bacterial diseases as follows: Bacterial diseases: typhoid, cholera, dysentery and pyogenic cocci Viruses: enteroviruses: poliomyelitis and viral hepatitis,

Parasitic diseases: cysts of protozoa and eggs of helminths.