Tobacco Budworm:1 Control On Flue-Cured Tobacco with Certain Microbial Pesticides2

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Abstract:

In advanced field test during 1964-72, certain commercial formulations of Bacillus thuringiensis Berliner and a nuclear polyhedrosis virus of Heliothis zea (Boddie) were applied with a power sprayer to flue-cured tobacco at dos- ages suggested by the manufacturers for tobacco budworm, H. virescens (F.), control. The lower dosages of B. thuringiensis and the virus were usually as effective as the higher dosages, and addition of certain insecticidal and non- insecticidal products to B. thuringiensis spray did not in- crease its effectiveness. Thuricide®, Biotrol® BTB-183, and Dipel® brands of B. thuringiensis were usually as effective as 1.5 lb/acre of TDE or carbaryl and sometimes as effective ® as 0.5 lb of methomyl. Biotrol® VHZ and Viron® /H brands of the virus were usually less effective than TDE or methomyl. In a preliminary test, a noncommercial preparation of Nosema necatrix Kramer provided significant but less control than methomyl.

Document Type: Research Article

Publication date: August 1, 1973

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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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