Partial Structure of Two Sex Pheromones of the Corn Earworm, Heliothis zea1,2
Authors: MCDONOUGH, L. M.; GEORGE, D. A.; LANDIS, B. J.
Source: Journal of Economic Entomology, Volume 63, Number 2, April 1970 , pp. 408-412(5)
Publisher: Entomological Society of America
Abstract:A procedure is described for determining the structures of sex pheromones of moths when the pheromone is of a specific, common type. When this procedure was applied to the corn earworm, Heliothis zea (Boddie), only 335 virgin females were needed to establish that this insect species has 2 sex pheromones, a mono-unsaturated alcohol and a mono-unsaturated acetate. Chemically bound pheromone was released from inactive liquid chromatographic fractions by saponification followed by acctylation. Though the structures could not be described completely, they appear to contain 14-carbon straight chain alcohol moeities, and in the acetate pheromone the double bond is not further than the 8th carbon atom from the acetate group. Several 14-carbon straight chain mono-unsaturated acetates were tested by laboratory bioassay and found attractive. The most potent was trans-7-tetradecen-1-ol acetate, which evoked response at a concentration as low as 10-18 g/ml; the corresponding alcohol was also attractive.
Document Type: Research Article
Publication date: 1970-04-01
- 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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