In 1998 Botswana changed policy from DDT to pyrethroids for residual house spraying and treatment of mosquito nets. The change was as a result of non availability of good quality DDT. The complaints from the community about stains DDT left on their walls also contributed to the change. However, the Ministry of Health has not banned the use of DDT for public health purposes. Should the country have an invasion of anopheles funestus which are currently only susceptible to DDT, Botswana will revert to it and avert malaria epdemics and save lives of the population at risk.