Mr.Mohamed Elsadek Abd-Elhalem, postgraduate student at the Economic Agricultural Department, will hold a seminar on   “Studies on Tomato bacterial wilt disease caused by Ralstonia solanacearum ”   under supervision of 1- Prof. Farag Ahmed Saiyd 2- Prof . Kenawi Mohamed Hassan 3- Prof. Kamal Ahmed Abouelyousr   on 10:00 o’clock, Monday, 1/4/2013 at the seminar hall