الفهرس 
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Abstract
Studies were conducted at rice fields at Rasheed District, Beheira Governorate and laboratory of Entomology, Faculty of Agricultural, Kafer El- sheikh University . during 2009 and 2010 seasons .. The studies aimed to survey arthropods. dominant in rice fields, and role of Trichogramma evanescens in suppressing infestation by Chilo agamemenon in rice fields. Twenty-one insect pest species, 36 predators, five parasitoids, 10 true spiders and three spider mites were surveyed using five techniques of sampling. The most important insect pests were Chilo agamemnon Bles.,Hydrellia prosternalis Deem. and Chironomus spp. Odonata and staphlylinids were the most important predators, while Trichogramma evanescens West. was the most efficient parasitoid Spiders of Lycosidae, Teteragnathidae and Thomisidae proved to be efficient biocontrol agents as generahist predators. In addition, to enhance the role of insect predators, parasitoids and true spiders, it is necessary to avoid using insecticides particularly early in the season.