Distribution and Seasonal Abundance of Hessian Fly (Diptera: Cecidomyiidae) Parasitoids in Texas

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Parasitism in field populations of the Hessian fly, Mayetiola destructor (Say), from four different north central Texas locations was observed during 1986-1988. Three species of parasitoids attacked the spring generation of the Hessian fly, whereas the fall generations were rarely parasitized. Parasitic activity occurred primarily during the month of May. Parasitism levels ranged from 0 to 87.5% and were affected by time of year, host density, geographic location, and the number of years Hessian flies had been present in an area. HomopoTus destructor (Say) (Hymenoptera: Pteromalidae) was the most abundant parasitoid in Texas, followed by Eupelmus allynii (French) (Hymenoptera: Eupelmidae) and Trichomalopsis subapterus (Forbes) (Hymenoptera: Pteromalidae).

Document Type: Research Article

Publication date: December 1, 1990

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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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