Synthetic Juvenile Hormones as Potential Coleopteran Ovicides1,2
Authors: WALKER, WILLIAM F.; BOWERS, W. S.
Source: Journal of Economic Entomology, Volume 63, Number 4, August 1970 , pp. 1232-1233(2)
Publisher: Entomological Society of America
Abstract:Three methylenedioxyphenoxy-terpenoid ethers with high morphogenetic activity on a variety of insects prevented egg hatch when they were applied to eggs of the Mexican bean beetle, Epilachna varivestis Mulsant, and the cigarette beetle, Lasioderma serricome (F.). Eggs of E. varivestis were very sensitive to these synthetic hormones during the first half of the egg stage. Hatch was reduced by 98% when 1-day-old E. varivestis eggs were exposed to the vapors from 1 µg of the most potent hormone in a 2X9-cm petri dish or dipped for 5 seconds in a solution of 10 ppm. The relative potency of the hormones as fumigants differed for the 2 species. The most active compound was as potent a fumigant as parathion on E. varivestis eggs. Young eggs of the omnivorous leaf roller, Platynota stultana Walsingham; the greenhouse whitefly, Trialeurodes vaporariorum (Westwood); the tobacco hornworm, Manduca sexta (Johannson); and the large milkweed bug, Oncopeltus fasciatus (Dallas), were insensitive to relatively high concentrations of the 3 compounds.
Document Type: Research Article
Publication date: 1970-08-01
- 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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