Field Performance of a New Formulation of the Screwworm Adult Suppression System

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A new pelletized formulation of the Screwworm Adult Suppression System (SWASS) was evaluated in Jeff Davis Co., TX, for effectiveness under field conditions. In 2 separate field evaluations, SWASS pellets prepared from 30.5% sugar, 30.5% dried blood, 7.5% corn cob grits, 2% dichlorvos, and 29.5% of a hardened wax preparation of swormlure-2 (82% swormlure-2, 18% wax) were applied aerially twice weekly at the rate of 1 kg/5.7 km2. In the 1st test, the SWASS pellets reduced populations of native screwwonn, Cochliomyia hominivorax (Coquerel) ca. 84% and populations of secondary screwworm C. macellaria (F.), ca. 90%. In a 2nd test, the SWASS pellets reduced the native screwworm population ca. 72–95%. The new formulation of SWASS is compact and appears amenable to mass production.

Document Type: Research Article

Publication date: June 1, 1980

More about this publication?
  • 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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