Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Ethiopia Steps Up Aerial Spraying To Stop New Desert Locust Invasion Sora Halake Ethiopian officials have deployed helicopters to spray new swarms of desert locusts that are eating crops and threatening the country's food security. The U.S. Agency for International Development saidbillions of the pests have descended on East Africa in recent weeks, targeting crops and pastures across a region already facing widespread hunger and humanitarian needs. In the latest development, huge swarms swept into Ethiopia's southern Oromia region last week from Kenya and Somalia, displacing thousands of people, officials said. .