Salem, Fathia Abd El-Khalek. <br/><br/>
Ecological and biological studies on natural enemies of some scale insects and mealybugs  [computer file]/ 
 دراسات بيئية وحيوية على الأعداء الحيوية لبعض الحشرات القشرية والبق الدقيقى. 
Fathia Abd El-Khalek Salem. 
 -  2011. 
 - Computer  laser  optical disk;   4 3/4 in. 
<br/><br/>Thesis (Ph.D.) -- Tanta University, 2011. 
<br/><br/>Includes bibliographical references (leaves167-184) . 
<br/><br/><br/>Systems requirements: Adobe Reader. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mealybugs--Biological control.<br/>Mealybugs--Ecology.<br/>Scale insects--Biological control.<br/>Scale insects--Ecology.<br/>Predatory insects.