الفهرس 
INTRODUCTION
Survey and population Trends of Certain Arthropods Associated with tomato and CucumberOnly 14 pages are availabe for public view
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Abstract
The role of host-plant resistance in future insect-pest management strategies have been appraised. There is urgent need for basic information on the response of certain pests to their host varieties, of the same plant species. In this investigation experiments have been conducted to evaluate the level and mechanism of resistance in different varieties of tomato and cucumber against their key pests. The obtained results could be summarized as follows:
1- SURVEY AND POPULATION TRENDS OF CERTAIN ARTHROPODS ASSOCIATED WITH TOMATO AND CUCtIMBER:
1.1- Survey of arthropods:
1.1.1- Survey of arthropods inhabiting tomato and their related predators:
1- The studies on the arthropods inhabiting tomato indicated the existance of 18 species belong to 17 genera under 14 families of 8 orders in the studied field at Assiut Governorate.
2- These arthropods are sorted out under three different groups: Pollinators, Predators, and pests.
3- The homopteran members were the most frequently species on tomato. Within this group the aphid, whit.efly and leafhopper were the dominant species.
4- The survey also indicated that the predaceous insects were Onus spp., chrysopenla carnea L., Coccinella undecimpunctata L., and Scymnus interruptus Goeze.