The Geography of Desert Locust in Sudan; Depicting of Niches using Modis Satellite Images

Abstract

Recent FAO reports have mentioned several outbreaks of Desert Locusts as putting large economically agricultural areas of the country at risk of environmental damage and socio economic disaster. Civil wars and financial constraints limited ground survey efforts. This study tested the hypothesis that the Desert Locust niches could be understood through serial satellite images. Such an understanding would aid in identifying priority areas for fast control. Data from satellite sources and Desert Locust occurrence data from Plant Protection Directory were integrated in GIS media. Change detection techniques using RS and GIS were applied. Results showed significant correlations were registered between metrological, edaphic, Vegetation and other Eco geographical parameters tested. Moreover predicted Desert Locust densities in the locust niches exceeded the FAO threshold value for ground spraying control. A Desert Locust vegetation damage risk map was produced to help decisionmakers through an early warning system for where and when control operations must take place.