Comparison of the Efficacy of Different Traps and Attractants for Tabanidae and Stomoxys in Mali

抄録

In the Soudano-guinean zone of Madina-Diassa Ranch in Mali a comparative study was carried out to assess attractiveness of Biconical, Cubical(F3), Pyramidal and “Vavoua” traps and/or odour associations: acetone/1-octen-3-o1, acetone/1-octen-3-ol/meta-cresol, 1-octen-3-ol/meta-cresol and acetone/1-octen-3-ol/cow urine.
In the woody savannah, Cubical, “Vavoua” and Pyramidal traps were found to be efficient against tabanidae than the Biconical trap. They attracted respectively 6.4, 5.9 and 4.2 times more than the Biconical trap. The “Vavoua” trap was most efficient against Stomoxys. It caught 15.6 tines more than the Cubical one, 15.4 times more than the Biconical trap and 6.2 tines more than the Pyramidal one.
In the forest gallery. the Cubical trap attracted 2.0 times more tabanidae than the Pyramidal trap and 4.4 times more than the Biconical trap. The “Vavoua” trap was 3 times more efficient against tabanidae than the Biconical trap. It caught 2.4, 3.2 and 12.2 times more Stomoxys than respectively the Cubical, Pyramidal and Biconical traps.
As far as odours are concerned, tabanidae were more attracted by the associations of acetone/1-octen-3-ol/cow urine, acetone/1-octen-3-ol/metal cresol and 1-octen-3-ol/meta- cresol. In the woody savannah, Stomoxys were more attracted by the combination acetone/1-octen-3-ol/meta-cresol and 1-octen-3-ol/meta-cresol ; in the forest gallery they are more attracted by acetone/1-octen-3-ol and acetone/1-octen-3-ol/cow urine associations than the others.
The Biconical trap is more effective against tsetse flies, but less effective against tabanidae. The “Vavoua” trap is very attractive for tsetse flies and Stomoxys. Therefore we recommend the use of “Vavoua” traps for vectors control. However, it appears necessary to integrate the control of all the vectors of African Trypanosomiasis, including tsetse flies, tabanidae and Stomoxys.