Hassan, Ahmed Abd El-Halim Abd El-Aal. <br/><br/>
New approaches for bollworms control  [microform] / 
Ahmed Abd El-Halim Abd El-Aal Hassan. 
 -  1991. 
 - 75, 4 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S.)-- Al-Azhar University, 1991 
<br/><br/>Includes bibliographical references (leaves 68-75) 
<br/><br/><br/>Microfiche. <br/>ASUNET, <br/>Ain Shams University, <br/>2 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heliothis zea--Biological control.<br/>Heliothis zea--Control.<br/>Insecticides.