Shimaa Sayed Hassan Khalil <br/><br/>
Impact of certain natural oviposition deterrents on some insect pests /  
 تأثير بعض المواد الطبيعية المانعة لوضع البيض على بعض الآفات الحشرية 
Shimaa Sayed Hassan Khalil ; Supervised Mohammed Yousri Hashem , Gamal Elden Hassan Swafy , Adel Anwar Ismail Ahmed 
 - Cairo :   Shimaa Sayed Hassan Khalil ,   2010 
 - 115 P. :   charts ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Economic Entomology and Pesticides 
<br/><br/> Potato is one of the most important vegetable crops in Egypt, several insect pests like, cotton leaf worm, black cutworm and potato tuber moth infested potato plants, during vegetative stage and in the storage resulting economical loss. Oviposition deterrent effect of extracted larval frass of spodoptera littoralis and agrotis ipsilon against adult females of the three insects was evaluated under laboratory and semi field conditions 
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<br/><br/><label>Subjects--Index Terms: </label>Agrotis ipsilon  Larval frass  Oviposition deterrent