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Positive Association of the Wheat Midge (Diptera: Cecidomyiidae) with Glume Blotch

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The wheat midge, Sitodiplosis mosellana (GĂ©hin), was found in wheat heads and widely distributed in Michigan in 1981. The midge larvae were found in greater numbers in heads infected with glume blotch, Septoria nodorum (Berk.) Berk. This is the first reported association of this insect with a fungus, although other cecidomyiids in closely related genera feed on fungi. We describe a technique to sample the number of larvae that have completed their feeding in wheat heads. Larvae in their last in star can live in their penultimate-in star skins under dry conditions for 10 months, and other larvae removed from their skins can live as long as 10 months submerged under water. In addition, pupation may occur under water, with some of the pupae floating to the surface. All of these unusual behavioral traits enable the midge to be very adaptable.

Document Type: Research Article

Publication date: October 1, 1982

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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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