Tsetse flies: Their economic significance and current control methods

Abstract

Tsetse flies, hematophagous insects of the genus Glossina, are significant vectors of trypanosomosis, a devastating disease in tropical regions, including Ethiopia.This parasitic disease impacts both humans and livestock, with economic losses in sub-Saharan Africa exceeding $1 billion annually.Ethiopia faces widespread infestation by four Glossina species: G. pallidipes, G. morsitans submorsitans, G. fuscipes, and G. tachinoides.These flies transmit pathogenic trypanosomes such as Trypanosoma congolense, T. vivax, and T. brucei, affecting approximately 200,000 km of the country's land.Climate change exacerbates the challenge by altering vector distributions, threatening cattle, small ruminants, and equines.Control efforts should prioritize vector reduction, particularly targeting savannah tsetse species (G.morsitans and G. pallidipes), to minimize costs and operational time.Strategies like the sterile insect technique are costeffective and efficient.Effective control requires collaborative efforts among communities, veterinary services, and governments to mitigate the impact of African trypanosomiasis and promote economic development.