The M.Sc. Thesis submitted by Mr. Ayman Saad Eddin Jaber Mohammed   , Plant Protection . Department, entitled: "Ecological and Toxicological Studies on Certain Insect Pests Infesting Cotton Crop in Assiut Governorate Under supervision of: 1.    Prof. Jaber Hasan Abo El-haggag Ibrahim  2.    Dr. Aly Ahmed Abd-Ella Mohamed  3… Dr. Yahya ahmed Abdellah   Approved BY: 1.. Prof Ahmed Ibrahim Ahmed Farghal 2.. Prof Jaber Hassan Aboualhaggag 3.. Prof Ahmed mahoud Ali Salman   4.    Dr. Ali Ahmed Abdellah   Would be discussed at Monday 3/10/2016 on 10.00 o’clock, in the Hall attached to the  International Conference hall