الفهرس 
مقدمةOnly 14 pages are availabe for public view
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Abstract
The oresent work was carried out at Kafr El-Sheikh region for the following objectives;1-Survey of the parasitoids and oredators of the two major species of whiteflies ,Bemisia,Tabaci (Genn) and dialeurodes citri (Asnm).2-Preliminary study of the biology of asoecific recorded predator attacking the cirtus white fly.3-Study the population dynamics of a-Bemisia tabaci (Genn) on cotton, eggplant,lantana,and the weeds.b- Dialeurodes citri (Ashm) on cirtus trees.c-Parasitoids and associated predators of the two flies.