Utilisation du SIG et des données de télédétection pour caractériser les zones de forte occurrence des criquets pèlerins

Abstract

The Desert Locust is one of the most important species because it is very mobile and it covers large areas of invasion. It represents a major threat to agriculture in Morocco. Preventative control of these insects requires upstream monitoring to make effective interventions. Usually the prospectors evaluate the situation of locust directly on the site through the collection of information but this solution is very tedious for survey teams. The methodology adopted in this work is to use GIS and remote sensing data to: (1) Delimit high-frequency areas of locust signaling, (2) Generate occurrence maps by development (polymorphism) phase (Solitary, transient and gregarious), (3)Characterize the area of high occurrence of solitary locusts. The results of this work allow the survey teams to acquire information in the very large areas and characterize the favorable development place for the desert locust.

Keywords

• Desert locust
• GIS
• Remote sensing
• Morocco