Efficiencies of stationary sampling tools for the tsetse fly Glossina fuscipes fuscipes in western Kenya

•StS-target is more efficient in sampling Glossina fuscipes fuscipes than ES-target and biconical trap.•Cost of catching a fly using the StS-target was 3.4 times lower compared to the biconical trap.•Cost of catching a fly using StS-target was over 19 times lower compared to the ES-target.•Tsetse fly collected from StS target are suitable for PCR base molecular tests.•There is a presence of Spiroplasma in wild G. fuscipes fuscipes of western Kenya.