SURVEY The Occurrence of Barley yellow dwarf viruses on Cereal Crops and Wild Grasses in Syria. A. Ansi, S.G. Kumari, A. Haj Kasem, K.M. Makkouk and I. Muharram (SYRIA & Yemen) Pages 1-9 CONTROL Sensitivity of Some Stages of Phthorimae opercullela (Zeller) to Gamma Rays. A.A. Al-Taweel, H.K. Al-Ubaidy and H.S. Al-Asaady (IRAQ) Pages 10-14