Adult Hornworm Populations and Degree of Infestation on Tobacco in Relation to Community-Wide Grower Use of Blacklight Traps1

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In field experiments conducted in Dillon, Horry, and Marion Counties, South Carolina, from 1964 to 1966, community-wide grower use of blacklight traps was evaluated for effectiveness in controlling the tobacco hornworm, Manduca sexta (Johannson). Hornworm populations, as measured by field-infestation counts on field tobacco and sucker growth, were approximately the same for the light trap and the outside nontreated areas for all 3 years for the experiment. Dissected females, taken from traps, had deposited at least 50% of their eggs prior to capture, compared with laboratory-reared females. The average number of female moths captured per trap in the 2 areas was approximately the same. In a communitywide light trap program (3 traps per square mile in a 100-square-mile area), the black-light trap did not control the tobacco hornworm under South Carolina conditions.

Document Type: Research Article

Publication date: June 1, 1968

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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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