Isolation,identification, and synthesis of male-produced sex pheromone of papaya fruit fly,Toxotrypana curvicauda Gerstaecker (Diptera: Tephritidae) |
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Authors: | T Chuman P J Landolt R R Heath J H Tumlinson |
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Affiliation: | (1) Japan Tobacco, Inc., Yokohama, 227 Kanagama, Japan;(2) Agricultural Research Service U.S. Department of Agriculture, Insect Attractants, Behavior, and Basic Biology Research Laboratory, 32604 Gainesville, Florida |
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Abstract: | A male-produced sex pheromone of the papaya fruit fly,Toxotrypana curvicauda Gerstaecker, was isolated from volatiles collected from air passed over calling males and was identified as 2-methyl-6-vinylpyrazine by comparative gas-liquid chromatographic and spectroscopic evidence. Synthetic 2-methyl-6-vinylpyrazine elicited typical pheromonal responses from unmated mature female flies such as walking, running, and flying in an arena bioassay; flying upwind with a zigzag flight pattern; and hovering in the pheromone plume in a wind-tunnel bioassay. These responses were similar quantitatively and qualitatively to responses to naturally occurring pheromone from calling male papaya fruit flies.This article reports the results of research only. Mention of a proprietary product does not constitute an endorsement or the recommendation for its use by USDA. |
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Keywords: | Toxotrypana curvicauda Diptera Tephritidae papaya fruit fly male sex pheromone pheromone 2-methyl-6-vinylpyrazine |
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