EPN and S,S,S,- Tributyl Phosphorotrithioate as Synergisms of Methyl Parathion in Resistant Tobacco Budworm Larvae (Lepidoptera: Noctuidae)

Authors: Payne, Gregory T.; Brown, Thomas M.

Source: Journal of Economic Entomology, Volume 77, Number 2, April 1984 , pp. 294-297(4)

Publisher: Entomological Society of America

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Abstract:

EPN [O-ethyl O-(p-nitrophenyl)phenylphosphonothioate] and TBPT (S,S,S,- tributyl phosphorotrithioate) were synergists for methyl parathion in the laboratory against a resistant strain of the tobacco bud worm, Heliothis virescens (F.). When compared directly with larvae of a susceptible strain at the LD90,315-fold resistance to methyl parathion was reduced to ll-fold and 9-fold resistance to methyl parathion/EPN and methyl parathion/ TBPT mixtures, respectively. Piperonyl but oxide and triphenyl phosphate were not effective as synergists. Results are discussed in relation to toxokinetic interactions, including inhibition of hydrolases and other detoxificative enzymes of synergists.

Document Type: Research Article

Publication date: April 1, 1984

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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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