Rearing Microplitis croceipes (Hymenoptera: Braconidae) and Other Parasitoids of Noctuidae with Multicellular Host-rearing Trays

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Rearing techniques for producing large numbers of parasitoids efficiently were developed based on established host-rearing techniques that utilized multicellular rearing containers. Previously, individual diet cups were used; methods were tedious and resulted in multiple handling of both host and parasitoid material. Using the newer techniques, time required to harvest parasitoid pupae was cut in half. Microplitis croceipes (Cresson) cocoons could be stored at 10.0°C for up to 2 wk with no increase in mortality. Simultaneous release of nearly 17,000 wasps was possible using low-temperature storage. Several species of parasitoids of noctuid larvae are being reared using adaptations of the method developed for M. croceipes. Advantages of using multicellular rearing techniques for parasitoids include production of large numbers of parasitoids with minimal cannibalism, minimal exposure to pathogens and injury due to handling, and tremendous savings in time and materials.

Document Type: Research Article

Publication date: August 1, 1987

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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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