Areawide Management of Cotton Bollworm and Tobacco Budworm (Lepidoptera: Noctuidae) through Application of a Nuclear Polyhedrosis Virus on Early-Season Alternate Hosts
Authors: BELL, MARION R.; HAYES, JANE LESLIE
Source: Journal of Economic Entomology, Volume 87, Number 1, February 1994 , pp. 53-57(5)
Publisher: Entomological Society of America
Abstract:A field trial was done in 1990 using aircraft to treat all vegetation in a 259-km2 area with the nuclear polyhedrosis virus from the cotton bollworm, Helicoverpa zea (Boddie), to control the first generation of bollworm and tobacco budworm, Heliothis virescens (F.). Bioassays of early-season hosts from the treated area indicated that ≍12% as much virus and 8% as many spray droplets were deposited on the plants compared with results of a previous small-area study. Although the area-wide viral coverage on target plants was inadequate, results of pheromone trap data indicated that populations of emerging adults were reduced 19-38% compared with adults from untreated areas. The virus remained active on the host plants (i.e., 47% of the original virus activity remained 9 dafter treatment). In cage testing areas where bioassays indicated that somewhat more virus was deposited, we detected a 41% average reduction in adult emergence in cages placed over treated wild hosts compared with untreated areas.
Document Type: Research Article
Publication date: 1994-02-01
- 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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