The Ph.D. Thesis submitted by Mr. Mohamed Abd-Elmonaem Mohamed Hussein, Plant Pathology. Department, entitled:   "Studies on Botrytis Blasting Disease of Onion Seed Head". Under supervision of: 1.    Prof. Mohamed Hassan Abd-Elraheem 2.    Prof.Kamal Ahmed Mohamed Abou-elyouser   Would be discussed at Sunday 30/9/2012 on 11.00 o’clock in Department Hall