Tests were conducted with Dursban® (O,O-diethyl O- 3.5.6-trichloro-2-pyridyl phosphorothioate) to determine its effectiveness against the chigger Neoschngastia amer- icana(l (Hirst). In 1967, 4 pounds (active ingredient) Dursban wettable powder spray were applied to a 1/120- acre pen, giving satisfactory control for 7 weeks follow- ing treatment. In 1968 a I-acre plot was treated with 4 pounds (active ingredient) per acre. This spray treatment prevented downgrading type lesions for 6 weeks. In another test using the same rate and formulation, using 50 turkey toms in each a treated and untreated pen, an increase of $41.35 per 50 birds was realized from the treatment, based on the increased grade and yield.
Document Type: Research Article
Publication date: April 1, 1970
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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.