Identification of volatile sex pheromone components released by the southern armyworm,Spodoptera eridania (Cramer) |
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Authors: | P. E. A. Teal E. R. Mitchell J. H. Tumlinson R. R. Heath H. Sugie |
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Affiliation: | (1) Department of Environmental Biology, University of Guelph, NIG 2W1 Guelph, Ontario, Canada;(2) Insect Attractants, Behavior and Basic Biology Research Lab., AR-SEA, USDA, P.O. Box 14565, 32604 Gainesville, Florida;(3) Division of Entomology, National Institute of Agro-Environmental Sciences, Kannondai 3-1-1, Yatabe, Tsukaba, 305 Ibaraki, Japan |
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Abstract: | Analysis of sex pheromone gland extracts and volatile pheromone components collected from the calling female southern armyworm,Spodoptera eridania (Cramer), by high-resolution capillary gas chromatography and mass spectroscopy indicated that a number of 14-carbon mono- and diunsaturated acetates and a monounsaturated 16-carbon acetate were produced. Gland extracts also indicated the presence of (Z)-9-tetradecen-1-ol. However, this compound was not found in collections of volatiles. Field trapping studies indicated that the volatile blend composed of (Z)-9-tetradecen-1-ol acetate (60%), (Z)-9-(E)-12-tetradecadien-1-ol acetate (17%), (Z)-9-(Z)-12-tetradecadien-1-ol acetate (15%), (Z)-9-(E)-11-tetradecadien-1-ol acetate (5%), and (Z)-11-hexadecen-1-ol acetate (3 %) was an effective trap bait for males of this species. The addition of (Z)-9-tetradecen-1-ol to the acetate blends tested resulted in the capture of beet armyworm,S. exigua (Hubner), males which provides further evidence that the alcohol is a pheromone component of this species. |
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Keywords: | Spodoptera eridania southern armyworm Spodoptera exigua beet armyworm Lepidoptera Nocteridae pheromone attractant (Z)-9-tetradecen-1-ol acetate (Z)-9-(E)-12-tetradecadien-1-ol acetate (Z)-9-(E)12-tetradecadien-1-ol acetate (Z)-9-(E)-11-tetradecadien-1-ol acetate (Z)-11-hexadecen-1-ol acetate (Z)-9-tetradecen-1-ol, behavior |
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