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Juvenile Hormone Activity of Acetals Applied Topically and as a Vapor to the Yellow Mealworm1•2•3

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Five of 19 acetals were as active as the standard farnesyl methyl ether (methyl 3,7,11-trimethyl-2,6,10-dodecatrienyl ether) when tested topically for juvenile hormone activity against Tenebrio molitor L. The acetals differed from sesamex only in that the phenyl substituents were other than the methylenedioxy moiety. Sesamex, which is a pyrethrin and carbamate synergist, showed high juvenile: hormone activity, but acetaldehyde 3,4-dichlorophenyl 2- (2-ethoxyethoxy)ethyl acetal was more active. A modified bioassay showed that vapors of the active chemicals also caused juvenilization.

Document Type: Research Article

Publication date: February 1, 1971

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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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