Can I stop tsetse biting my cattle?
In short, no, unless you place them in a fly-proof cage or keep them in an area where there are no tsetse.
Some farmers have developed traditional means of reducing the numbers of bites a cow receives. These methods include grazing livestock at night, when tsetse are not active, or in areas where tsetse are thought to be less abundant. Many farmers also use woodsmoke to repel tsetse and other flies, and recently they have surrounded their cattle with walls of insecticide-treated netting. All these methods reduce the number bites but none of them is perfect. Thus cattle will still be bitten and contract trypanosomiasis, eventually. The only sure way of stopping tsetse bites is by getting rid of the flies.