الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 149 |  |  |
| | | from | 149 | | |
Abstract
A-Ecological studies:-
1.Survey study indicated that 56 species of mites belong ing to 44 genera and 24 families ware callected from different habitats which they classified according to their feeding habitats into three categories (phytophagous , predaceous , Mites of uncertain freeding habitats ).
2.Population dynamics of certion phytophagous motes and its predaceous mites associated with some field crops (cotton, eggplant and squash ) in two localities (Aga and El-Mansoura) in Dakahlia governorate during the season 2001.
3.Population fluctuation of T.urticae kochto study the susceptibility of ten soybean genotypes to mite infestation during 2000 and 2001 in Dakahlia governorate.
B-Biological studies:-
This part aimed to investigate the biological parameters of the predaceous mite Bdellodes sp- when experimentally fed on the immatune stage of collembolla at 20 C and 70% R.H.