الفهرس 
Introduction
Population fluctuationsOnly 14 pages are availabe for public view
 |  | from | 393 |  |  |
| | | from | 393 | | |
Abstract
Armored scale insects, Chrysomphalus ficus Ashm., Lepidosaphes beckii New., Aonidiella aurantu Mask. and A. citrina Coq., soft scale insects, Ceroplastes floridensis Comst. and Coccus hesperidum L., and mealybug, Maconellicoccus hirsutus (Green) are among the most serious pests on fruit and ornamental host plants, which cause considerable damage. Scale insects are subjected to be attacked by several parasitoid species. So, the role of the parasitoids should be maximized and utilized in integrated control programs of these pests. The present work was conducted at citrus orchards (Kafr El- Sheikh and Garbia govemorates), and at ficus trees and hibiscus shrubs located at Kafr El- Sheikh during two successive seasons, being 2005/06 and 2006/07. The aims of this study were to survey scale insects, parasitoids dominant on citrus, ficus trees and hibiscus shrubs. Also, the relation between these insects and parasitoids was investigated; to add some knowledge about seasonal abundance arid activity of parasitoids. Also, a comparison between the role of Malathion and mineral oil in suppression of scale insects and their associated parasitoids was considered. In addition, morphometric measurements to one of these parasitoids. The obtained results could be summarized as follows: 1. Population fluctuations of the major scale insects attacking citrus trees: 1.1. At Kafr El-Sheikh governorate: I.I.I. Chrysomphalus ficus Ashm.: C. ficus had four peaks of abundance; on mid-July, at the beginning of October, mid-December and on first of March in 2005/06.