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Visual Technique for Determining Presence and Stage of Zoophthora phytonomi in Dead Alfalfa Weevil Larvae

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Abstract:

A visual technique accurately and rapidly determines the incidence of a fungus Zoophthora Phytonomi (Arthur) Batko in dead larvae of Hypera postica (Gyllenhal). The technique is based on the presence and color of a precipitate which forms when dead larvae are placed in 3% KOH. The accuracy of this technique was confirmed by standard diagnostic procedures.

Document Type: Research Article

Publication date: April 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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