A Practical Policy for Tsetse Reclamation and Field Experiment

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This paper has shown that there are many tsetse situations which can be cheaply remedied with the knowledge possessed to-day. These amenable situations form more than the mere fringe of the problem; they are part and parcel of the problem itself and must amount in the aggregate to several thousands of square miles. Cheap reclamation methods give East Africa the physical ability to reclaim large areas, and the reclamation of large areas means in its turn that the work can be extended to natural tsetse boundaries, instead of the artificial, expensive cleared barriers of the past. On the remedies discovered a practical East African policy of reclamation can and should be built. Cultivation steppe should never again be surrendered .to the tsetse. The hard pan type of Acacia-Commiphora savanna can be reclaimed from G. swynnertoni cheaply by discrimination, clearing, without recourse to fire exclusion or organized fires. Where the thicket is light, G. pallidipes can be driven from thorn savanna and miombo wooding. The great plains, infested with G. morsitans or swynnertoni, or both species, can be cheaply reclaimed. G. pallidipes, brevipalpis and austeni can be dealt with reasonably cheaply where they occur as a linear problem. The G. palpalis problem can be met. The Medical Department of Tanganyika has found the answer to the Rhodesian type of 'sleeping sickness in concentration of the population. There is no reason to-day why towns like Dar es Salaam should any longer tolerate tsetse. In certain circumstances the tsetse position on alienated land can be greatly improved, but legislation is very necessary to ensure the co-operation of all owners. This is an impressive list which shows that there is some kind of a proved weapon against all save one of the important species of t~etse in certain of the common conditions in which they are found. There is lacking a method to reclaim the true habitat of G. morsitins, the miombo wooding. This is due not so much to the difficulty of the problem as to the curtailment of the Department's programmer on account of the war.
East African Agricultural And Forestry Journal, 9 (IX), p. 157-162