One of the most unusual projects financed by the U.S. Agency for International Development (AID) is underway in Ethiopia. There for 17 years, U.S. experts have been helping organize a small fleet of aircraft to control insects and plant diseases by aerial spraying. The operation began in 1952 when the United States provided planes, pilots, insecticides and advice to combat a major infestation of desert locusts. In later years the service was broadened to focus attention on plant diseases. USAID has helped train Ethiopian technicians, pilots and mechanics to handle the program of spraying insecticides. Supervisor of the training program is Al Temple, a colorful Texan who has spent 14 years in Ethiopia.