Apparent density and sex-ratio of Tsetse (Diptera: Glossinidae) caught with urine baited-traps at a mixed-farming settlement in Nigeria
Keyword : Trypanosomosis, Glossina species, Odor-baited traps, Tsetse studies and control.
Author(s) : Wanze Enyi Nwosu And Obiora Osegboka Ikpeze
Abstract : ABSTRACT Trypanosomosis, caused by Trypanosoma species vectored by the tsetse, is among the major constraints to livestock and agricultural production in sub-Saharan Africa. During dry season in 2015 we studied Maganda village in Kagarko Local Government Area of Kaduna State, Nigeria and determined some population parameters of tsetse caught with odor-baited traps. Ten urine-baited traps were deployed side-by-side another 10 non-baited traps for 48 hours. The baited traps attracted 60 different insects of which 45% were tsetse, identified as Glossina palpalis (63% females and 37% males) with a sex ratio (1♂:1.8♀) and apparent density of Glossina species (1.125). Correlation between urine concentration in the bait and number of flies caught was strongly positive (R= 0.822, r =0.9). The high relative percentages of tsetse caught indicated that Biconical and Nitze traps could be optimized for tsetse field sample collection and studies. Glossina palpalis is well-known to transmit Trypanosomes that cause Human African Trypanosomosis and African Animal Trypanosomosis. Results from this study will be useful in evidence-based decision on tsetse studies and control within the Tsetse-belt of Africa.