Efficacy of three trap types for trapping Glossina palpalis, G. tachinoides, and G. mortisans in the Mole Game Reserve in Ghana

English

A study was undertaken to determine the most effective of three trap types [biconical, monoconical, and NGU Siamese (NG2B)] for catching three Glossina species (G. palpalis, G. tachinoides, and G. mortisans). The three species were trapped in the Mole Game Reserve where they occur. Results showed that in the absence of odour attractants, the biconical trap was the most efficient trap. Out of a total of 4619 tsetse flies caught during the trapping period. 2073 (44.9 %) were caught in the biconical trap. The monoconical trap caught 1362 tsetse flies (29.5 %) whilst the NG2B trap caught 1184 tsetse flies (25.6 %). There was no significant difference (P>0.05) in the number of tsetse flies caught by the various traps. There were, however, locational differences, with the number of flies caught in the riverine area being significantly higher (P<0.05) than the number caught in the pond area, but not significantly different (P<0.05) from the number caught in the woodland. There was also a very significant difference (P<0.001) in the species of tsetse flies caught by the traps. Significantly (P<0.001) more G. tachinoides were caught as compared to G. mortisans. Virtually no G. palpalis were caught. The number of female flies caught (3621) was significantly higher (P<0.001) than the number of male flies caught (995).

Dankwa, D.; Oddoye, E. O. K.; Mzamo, K. B.