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Effect of Bacillus thuringiensis on the Pink Bollworm

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Laboratory tests were made to determine the susceptibility of Pectinophora gossypiella (Saunders) in Arizona to Biotrol BTB 183, a commercial preparation of Bacillus thuringiensis Berliner. Field tests were made to determine if this preparation could be used effectively for earlyseason control of the pink bollworm on cotton.

The laboratory tests showed that first-stage pink bollworm larvae were susceptible to Biotrol BTB 183 when fed this material incorporated in artificial medium. Some mortality was obtained by placing first-stage larvae on the leaf surface of treated cotton plants for short periods and then returning them to artificial medium. In the field tests, several application rates of both a wettable powder and a dust were compared, but none of these treatments successfully suppressed the pink bollworm populations.

Document Type: Research Article

Publication date: December 15, 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.
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