Desert Locust Bulletin 557: Update on Outbreaks and Forecasts

Desert Locust outbreaks remained significant in northern Sudan and southern Sahara during February, despite a reduction in treated areas. Forecasts predict spring breeding will initiate soon, particularly in northern Sudan, southern Egypt, and Saudi Arabia, with expected increases in Algeria and Libya. Ongoing monitoring and control measures will be essential.

In February, Desert Locust outbreaks continued to be reported in northern Sudan and the southern Sahara. Although locust populations declined along the Red Sea coast from Eritrea to Egypt during the winter, adult groups and swarms were still prevalent in the Nile Valley of northern Sudan and southern Egypt. Additionally, new hopper groups and bands formed along the northern coast of Saudi Arabia, while adult populations in Algeria and Niger increased. Some small swarms were spotted in northern Chad, and isolated adults were present in Morocco. Control operations in February saw a reduction, with 25,058 hectares treated compared to 41,877 hectares in January.

The forecast suggests that spring breeding will begin predominantly along irrigated crops in the Nile Valley of both northern Sudan and southern Egypt. Adult swarms from the Red Sea coast will move into Saudi Arabia’s interior for breeding. In Algeria and Libya, an increase in locust numbers is anticipated during March and April, with breeding activity leading to the formation of new hopper groups and bands. Additionally, some locusts in Niger and Chad are expected to persist or potentially move northward, while Morocco may also see small-scale breeding. Consequently, continued control operations remain essential in these regions.

In summary, Desert Locust populations have persisted in specific regions despite a decline along some coastal areas. The forecast indicates that spring breeding is imminent in several regions, necessitating ongoing control efforts. Monitoring by the FAO/DLIS will be crucial in managing the locust situation effectively in the forthcoming months.

Original Source: reliefweb.int