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Outdoor Rearing Technique for Mass Production of Onion Maggots (Diptera: Anthomyiidae)

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We conducted experiments to determine the feasibility of producing large numbers of Delia antique (Meigen) using outdoor larval rearing beds. Eggs collected from ca. 100,000 to 200,000 adults in the laboratory from mid-September to early October were used to infest beds filled with sliced onions "planted" in brick sand. With supplemental heating available if required, larvae pupated by the end of November. Pupae in diapause were left in the beds over winter, were washed out of the sand in early April, and were then placed in cold storage where they could be stored for up to 1 year. The technique proved suitable for production of as many as 50,000 pupae per m2 of bed. Requirements for ca. 1,000,000 pupae per year were met, with insect quality at least as good as that of insects produced in laboratory rearing programs, and with substantially lower production costs.

Document Type: Research Article

Publication date: June 1, 1984

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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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