Modifications of the Artificial Diet for Codling Moths1 to Improve Larval Acceptance and Production of Moths2

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Acceptance (larval entry) of an artificial diet by neonate larvae of Laspeyresia pomonella (L.) was not improved by incorporation of apple products or flavors, citric acid, or green coloring into the standard wheat germ diet. Physically altering the surface of the diet by punching holes in the surface, by using foaming agents (gelatin and egg albumin) and particulates such as vermiculite or alfafa meal to make the diet porous or rough, did not result in increased larval entry. Apple juice. malic acid, and citric acid caused some fermentation and syneresis of the diet which spoiled it for larval use. Any procedure or material used that made the diet porous resulted in a rapid dehydration of that diet. Although larval acceptance may have been good on these porous diets, the gradual loss of moisture over the 15- to 20-day larval maturation period eventually made the diet unpalatable, and the larvae starved before they matured.

Document Type: Research Article

Publication date: February 1, 1972

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  • 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.
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