Improving the Cost-Effectiveness of Artificial Visual Baits for Controlling the Tsetse Fly Glossina fuscipes fuscipes

摘要: Tsetse flies, which transmit sleeping sickness to humans and nagana cattle, are commonly controlled by stationary artificial baits consisting of traps or insecticide-treated screens known as targets. In Kenya the use electrocuting sampling devices showed that numbers Glossina fuscipes (Newstead) visiting a biconical trap were nearly double those black target 100 cm×100 cm. However, only 40% males 21% females entered trap, whereas 71% 34%, respectively, alighted on target. The greater number appeared be due its being largely blue, rather than three-dimensional raised above ground. Through series variations design we show blue-and-black panel cloth (0.06 m2) flanked fine netting, placed at ground level, would about ten times more cost-effective large targets in control campaigns. This finding has important implications for controlling all subspecies G. fuscipes, currently responsible 90% cases.