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DL Situation
Desert Locust Bulletin, No 484, January 2019

Swarms form and migrate in Central Region

A Desert Locust outbreak is in progress on the Red Sea coastal plains of Sudan and Eritrea where an increasing number of groups, bands and swarms formed during January as a result of a second generation of breeding.

In addition to the breeding, there were swarm migrations originating from two different sources. At least one winter-bred mature swarm crossed the Red Sea from the Sudan/Eritrea outbreak area to the northern coast of Saudi Arabia at mid-month, followed by additional migrations about one week later. Mature adult groups and a swarm arrived on the Red Sea coastal plains in southeast Egypt from the south at the end of the month. In the interior of Saudi Arabia, immature swarms invaded the western and northern edges of the Empty Quarter, coming from the southeastern Empty Quarter near the Yemen/Oman border where two generations of breeding occurred after good rain from cyclones Mekunu (May) and Luban (October). A few of these swarms moved to UAE and southern Iran. Adult groups could continue to move east along the southern coast of Iran to southwest Pakistan.

Aerial operations were mounted in Sudan and Saudi Arabia supplemented by ground control in both countries, Eritrea and Egypt, treating nearly 55,000 ha during January.

Breeding will continue during February on the Red Sea coast in Sudan and Eritrea, causing a further increase in hopper and adult groups, bands and swarms. As vegetation dries out, adult groups and a few swarms are likely to move north along the Red Sea coast in Eritrea to Sudan, and from the Red Sea coast of Sudan to the Nile Valley in northern Sudan. There is a moderate risk that some swarms could cross the Red Sea to the coastal and interior areas of Saudi Arabia.

In Northwest Africa, the situation remains calm. Local breeding occurred last month in northwest Mauritania and southern Algeria. If rains fall, spring breeding is likely to commence in March along the southern side of the Atlas Mountains in Morocco and Algeria.

For more information, please download the Desert Locust Bulletin from the link below:


DLIS - 04, Feb 2019
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