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An omnivorous leafroller, Platynota stultana Walsingham, and the beet armyworm, Spodoptera exigua (Hübner), are respectively tolerant and susceptible to the benzoylphenyl ureas diflubenzuron and Bay Sir 8514 (2-chloro-N-(((4-(trifluoromethoxy)phenyl)amino)carbonyl)benzamide). LC50 values for diflubenzuron and Bay Sir 8514 in artificial diet for 1st in stars were, respectively, 6938 and 173 ppm with P. stultana and 1.10 and 8.06 ppm with S. exigua. DEF® (S,S,S-tributylphosphorotrithioate), an esterase inhibitor, synergized diflubenzuron and Bay Sir 8514 3,319- and 45-fold, respectively, in P. stultana, but was not synergistic in S. exigua. Piperonyl butoxide, an oxidase inhibitor, did not synergize either benzoylphenyl urea in either insect.
Document Type: Research Article
Publication date: June 1, 1983
More about this publication?
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.