Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Emergency Transboundary Outbreak Pest (ETOP) situation bulletin for August 2020 with a forecast through mid-October.

Abstract

The Desert Locust (Schistoseca gregaria - SGR1): The SGR situation remained serious in the central outbreak region (COR) during August. Breeding continued in Ethiopia and Somalia with swarms arriving from Yemen further exacerbating the situation. Control operations treated 54,703 ha in Ethiopia and 8,800 ha in Somalia during this month. Swarm movements from northern Kenya to Ethiopia, Uganda and South Sudan declined and only very few arrived in northern Uganda and southeastern South Sudan (250 ha were treated) during August. Scattered adults were detected in several places in summer breeding areas in Sudan where more than 178,000 ha were surveyed during this month. Several mature swarms invaded Eritrea and spread throughout the highlands and the Red Sea coast where good rains fell in August. In Yemen, hoppers, adult groups and swarms continued developing in the central highlands south of Sana'a in the interior and southern coastal areas and some adults were detected on the Red Sea coast and control operations treated 5,909 ha during this month. Swarms from Yemen invaded southwest Saudi Arabia, and some reached the Red Sea coast near Jizan. Control operations treated mature swarms on 1,355 ha in southwest Saudi Arabia and southern Red Sea coast. In Oman, adult groups and swarms were treated on some 58 ha on the southern coast. In the eastern outbreak region (EOR), extensive hatching and hopper and band formations occurred in India and, to a lesser extent, in southeast Pakistan and intensive control treated hoppers on 49,124 ha in Rajasthan, India and 26, 381 ha in Tharparkar, Pakistan during August. In the western outbreak region (WOR), the situation remained calm and only a few isolated and scattered adults were detected in Mauritania, Mali, Niger and Chad.