Ayad,Farida Ahmed. <br/><br/>
Cross-resistance in the Egyptian cotton leafworm  [microform]/ 
 دراسة تأثير ظاهرة المقاومة المشتركة للمبيدات في دودة ورق القطن. 
Farida Ahmed Ayad. 
 -  1973. 
 - 226, 6  leaves :  ill ;  30 cm. 
<br/><br/>Thesis (Ph.D.) -- Cairo University, 1973. 
<br/><br/>Includes bibliographical references (leaves 211-226) 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>4 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spodoptera littoralis.<br/>Cotton leafworm--Egypt.<br/>Insecticide resistance.