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Sugar - beet, Beta vulgaris is one of the most important economic crops in Egypt. Therefore, farmers are encouraged to increase sugar beet production in order to increase the requirements for local sugar production. Sugar- beet plants are liable to infestation by a variety of insects. Some of these insects are key pests of regular occurrence and cause serious damage to their host plants that leads to reduction of crop yield, in both quantity and quality. Sugar is a strategic commodity to many countries of the world, since it comes right after wheat. It has strategic importance to many...