A Comparative Study On The Ecology Of Tsetse Flies (diptera Glossinidae) In The Wabe And Walga River Systems

The ecology of tsetse flies of the Wabe and Walga River Systems (southwest Ethiopia) was assessed and compared in the present study. Biconical flytraps baited with cow-urine were employed in both areas. No tsetse flies were detected in Wabe River System. However, di-species composition and bi-phasic diel activity of Glossina morsitans and G. pallidipes in Walga River System were determined.rnThe nature of fly abundance and distribution in relation to season and vegetation types were studied. As the dry season progressed, fly distribution was almost restricted to riverine vegetation, but in rainy and early dry season (August, September and December) fly distribution in riverine and bushy grassland vegetation was almost comparable. The infestation of flies in Borer (at Walga River System) was 24.7% and 26.5% for G. morsitans and G. pallidipes, respectively. There was no significant difference in proportion of infestation between the two fly species (P>0.05). Despite no flies were detected in Serite (at Wabe River System), cattle infection was observed at both study sites, and no significant differences were observed between proportions of infected cattle at the two sites (P>0.05).rnOne established fact from the mean packed cell volume (PCV) analysis was that even if the proportion of negative cattle was significantly higher than the proportion of positive cattle in both sites (P

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