The Occurrence of Glossina morsitans in Tanganyika Territory in Vegetational Types other than the Isoberlinia-Brachystegia Communities

Abstract

(a). G. morsitans had been found in banana plantations and it was feared that it might in time establish itself. However, most of these flies had been caught in plantations which were reverting back to natural types of vegetation.(b). It was shown by the release of marked flies that G. morsitans was repelled by the plantations which were still being cultivated.(c). Only one G. morsitans was taken by the writer in cultivated plantations. It was demonstrated that flies found in these situations might easily have been transported thither by man or animals.(d). The temperature in the banana plantations was slightly higher, and the range of the humidity greater, than in the adjacent vegetation. The difference between these physical factors of the two localities is insufficient to account for the flies' preference for natural types of vegetation as opposed to plantations.