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The addition of 0.25% Vanderzant's vitamin mixture and 0.05% cholesterol to the sucrose and yeast hydrolysate diet of adult females of Dacus oleae (Gmelin) can both inhibit the production of mottled eggs and increase fecundity. Yeast hydrolysate renders the diet unpalatable and deliquescent, but an upper limit of ca. 23% by weight results in optimal egg production. Two dry diets were developed. Neither contained an antibiotic and both were readily prepared. Each diet prevented the production of mottled eggs, maintained hatchability at over 75%, and out-performed the standard, wet-mixed, fresh-egg-yolk diet when measured by the average number of eggs per female per day (standard diet, 9.4; diet 14,12.2; and diet 15,14.2).
Document Type: Research Article
Publication date: February 1, 1977
More about this publication?
Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.