Some Parameters of Benzoylphenyl Urea Toxicity to Beet Army worms (Lepidoptera: Noctuidae)
Authors: Granett, J.; Bisabri-Ershadi, B.; Hejazi, M. J.
Source: Journal of Economic Entomology, Volume 76, Number 3, June 1983 , pp. 399-402(4)
Publisher: Entomological Society of America
Abstract:Five benzoylphenyl urea insect growth regulators, diflubenzuron, penfluron (2,6-difluoro-N-]]]4-[trifluoromethoxy]phenyl]amino]carbonyl]benzamide)BAY SIR 8514 (2-chloro-N-[[[4-[trifluoromethoxyl]phenyl]amino]carbonyl]benzamide), EL 1215(2,6dimethoxy-N-[5[4[pentatluoroethoxy]phenyl]1,3,4-thiadiazo1-2yl]benzamide), and UC 62644 (2,6-difluoro-N-[[[4-[3-chloro-5-trifluoromethy1-2-pyridiny1-oxy]-3,5-dichlorophenyl]amino]carbonyl]benzamide) were tested against Spodoptera exigua (Hübner) in laboratory bioassays. The order of LC50 values was UC 62644 > penfluron > EL 1215 > diflubenzuron > BAY SIR 8514 with a 35x difference between the most and least toxic chemicals. Small differences in toxicity were observe between WP and T formulations. Treatments at the first 2 in stars and the 4th-instar indicated that these age classes were nearly equally susceptible. Diflubenzuron, penfluron, and BAY SIR 8514 were tested in 4th-instar topical biossays. Penfluron showed the highest toxicity in the topical bioassays.
Document Type: Research Article
Publication date: June 1, 1983
- 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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