Vol. 4, Issue 3, Part B (2017)

Author(s): Abdalla Ibrahim Abdalla, Mutaman AA Kehail and Nasir A Ibrahim

Abstract: In Gezira State, Sudan, the use of the insecticides for control of agricultural insect pests and mosquitoes, has led to environmental pollution, pest resurgence, pest resistance and appearance of secondary pests. The aim of this work was to study effect of X–ray radiation on adults and larvae of Anopheles arabiensis mosquitoes, specifically the reproductive periods and fecundity. Some larvae and adults of A. arabiensis were irradiated with different doses of X-ray. The insects were then reared and the pre oviposition period, daily number of eggs deposited, the oviposition period, the post oviposition period, the adult longevity and the average number of eggs per female were recorded. The results revealed that, the average fecundity was 110.34 and 93.2 (eggs per female) for A. arabiensis females mated with irradiated males at their adult stage and at their larval stage, respectively. In the control group it was 29.1-147.3 eggs per female. The average sterility was 75.59% and 41.17% for A. arabiensis females mated with irradiated males at their adult stage and at their larval stage, while it was 2.35% and 0.10% in the control group, respectively. This study recommends using X-ray techniques to control Anopheles mosquito's population since it decreased the fecundity and induced sterility in males.