RH-5992, A New Insect Growth Regulator Active Against Corn Earworm and Fall Armyworm (Lepidoptera: Noctuidae)

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Laboratory bioassays conclusively demonstrated the toxic effects of the insect growth regulator (IGR) RH-5992 against 1- and 7-d-old larvae of the corn earworm, Helicoverpa zea (Baddie), and fall army worm, Spodopterafrugiperda (J. E. Smith). The IGR exhibits toxicity to both species at similar concentrations. Mortality 2:90% for both species was achieved at concentrations of >0.001% (AI). Larval death generally occurred within 4-7 d after treatment of both 1- and 7-d-old corn earworm and fall armyworm larvae. RH-5992 may be of value in controlling the com earworm and fall armyworm in integrated and areawide management programs.

Document Type: Research Article

Publication date: August 1, 1992

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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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