Tsetse fly is a fly of African origin, known as spreaders of disease. This flies carrying trypanosomes, the parasite of animals which causes sleeping sickness in humans that could be fatal, as well as 'Nagana', a deadly disease in cattle and horses.

There are more than 20 species of tsetse fly, some of them attacking humans. Tsetse flies to resemble flies home, but they grow bigger and wings folded flat on his back so it does not stand out like wings fly home. Tsetse fly long proboscis to penetrate the body of its host. Most of the tsetse fly sucks blood from mammals, but some other kind of taking blood from reptiles and birds. Currently, blood sucking tsetse fly, they can infect its host. Tsetse fly transmits good 'Nagana' as well as sleeping sickness by biting infected humans or animals, pick up parasites and infect the next host.

Tsetse flies do not usually infect humans until the parasite has lived in her body for a few days and has passed through the stomach into the salivary glands. Then these flies will transmit the parasite to anyone bitten. Parasites that infect animals thrive in the proboscis or in the belly of the tsetse fly.

Tsetse flies proliferate slowly. Fly females only produce one egg at a time. Larvae that hatch from the eggs is maintained during a period of growth in its mother's body. When the larvae are already fully grown, larvae will be deposited on the ground. Then the larvae will burrow in the ground before it turns into a pupa.

Tsetse fly bite humans and animals during the day. They live on the banks of lakes and rivers, making a lot of places in Africa unfit for habitation. In some areas, insecticide sprays and cleaning vegetation can control the tsetse fly population growth. Other control program using special traps. Drugs to protect livestock from 'Nagana' is also used. Unfortunately, political unrest in Africa has hampered efforts to control the tsetse