Radwa Fathi Sallam Ibrahim <br/><br/>
Efficacy of the pathogenic bacterium bacillus thuringiensis and the egg parasitoid trichogramma evanescens west. on the spiny bolloworm, earias insulana boisd. in Okra /  
 فى الباميا Earias insulana boisd على دودة اللوز الشوكية Trichogramma evanescens west وطفيل البيض  Bacillus thuringiensis فعالية البكتريا الممرضة 
Radwa Fathi Sallam Ibrahim ; Supervised Monir Mohamed Elhusseini , Essam Abdelmagid Agamy , Basma Abdelaziz Mahmoud 
 - Cairo :   Radwa Fathi Sallam Ibrahim ,   2013 
 - 90 P. :   charts , photographs ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Economic Entomology and Pesticides 
<br/><br/> Positive relationships were found between increasing mortality percentages and increasing concentrations of Dipel 2X and negative relationships between LT₅₀ and increasing of concentrations. 3   instar larvae of Earias insulana (Boisd.) treated with the concentration 10.24 x 10⁶ IU/ml. showed elongation of epithelial cells, high increase for secretion of the peritrophic membrane, separation of epithelial cells from each other, distortion of the peritrophic membrane  and the apical parts of the elongated epithelial cells fell in the lumen 
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<br/><br/><label>Subjects--Index Terms: </label>Bacillus thuringiensis Earias insulana Rate of infestation