Ihab Dahab Ibrahim <br/><br/>
Studies on some pests of tomatoes and their biological control in the southern valley of Egypt /  
 دراسات على بعض آفات الطماطم ومكافحتها البيولوجية فى جنوب الوادى بمصر 
Ihab Dahab Ibrahim ; Supervised Sayed Ashraf Elarnaouty , Amal Ibrahim Afifi , Ahmed Hussein Elheneidy 
 - Cairo :   Ihab Dahab Ibrahim ,   2011 
 - 105 P. :   charts , facsimiles ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Economic Entomology and Pesticides 
<br/><br/> The present study focused on a survey of the important pests of tomato plants at Nasser Lake region Aswan Governorate and their biological control using certain natural enemies . Results showed that the mean rate of infestation with S. exigua was 4.1% while infestation rates with the other pests were comparatively very small ; ( E. discipenus and liriomyza spp. 0.9 %, T. urticae 0.75 %. Aphis spp. 0.5% and B. tabaci 0.33% 
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<br/><br/><label>Subjects--Index Terms: </label>Chrysoperla canea  T. evanescens  Tomato