Effectiveness of plant extracts to control of purple blotch and Stemphylium blight diseases of onion (Allium cepa L.) in Assiut, Egypt. Research Authors Sobhy I. I. Abdel-Hafez, Kamal A. M. Abo-Elyousr and Ismail R. Abdel-Rahim (2014) Research Journal Archive of Phytopathology and Plant Protection Research Rank 1 Research Vol 47, (3): 377-387 Research Year 2014