Vector Control

There are several tsetse control/ eradication methods: aerial spraying, ground spraying, traps and insecticide impregnated targets, insecticide treated cattle and the Sterile Insect Technique (SIT). Aerial spraying using residual insecticide formulations have been applied from aircraft to control/ eradicate tsetse flies. Sequential Aerial Technique (SAT) spraying has been used to treat 10,000km2 in Botswana and 48,000 Km2 in Zimbabwe.

The method has been used in Kenya, Nigeria, Somalia, Uganda, and Zambia with varying successes. SAT is used to treat large areas rapidly and is particularly appropriate in protected areas and epidemic situations. It is suitable where ground access is difficult, dangerous or inaccessible. However, SAT using Ultra-Low Volume (ULV) and non-persistent insecticide is expensive and cannot be implemented in areas with environmental concerns and ragged topography.