Tobacco Budworm (Lepidoptera: Noctuidae): Variations in Response to Methyl Parathion and Permethrin in the Subtropics
Authors: Wolfenbarger, D. A.; Harding, J. A.; Robinson, S. H.
Source: Journal of Economic Entomology, Volume 77, Number 3, June 1984 , pp. 701-705(5)
Publisher: Entomological Society of America
Abstract:To determine the variations in the effect of methyl parathion on the tobacco budworm, Heliothis virescens (F.), the progeny of insects collected in the larval stage from Cotton in the subtropical Lower Rio Grande Valley (LRGV) of Texas were topically treated from 1966 to 1975 and from 1978 to 1981. LD50 values for 80% of the collections exceeded those of a susceptible laboratory-reared strain. However,the values forthe field strains varied widely within and among years. Peak resistance to methyl parathion occurred in 1971. By 1981, however, resistance was at about the level found in 1966. Control of Heliothis spp. damage to souares and bolls with methyl parathian in the field tended to vary inversely with resistance to this insecticide as measured by LD50 values. Neither field data nor LD50 values indicated that H. virescens larvae in northeastern Mexico and the LRGV had developed resistance to permethrin between 1974 and 1981.
Document Type: Research Article
Publication date: June 1984
- 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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