Identification of female sex pheromone components of rice looper,Plusia festucae (L.), (Lepidoptera: Noctuidae).
The rice looper,Plusia festucae, is a defoliator of the rice plant. Chromatographic behavior, chemical reactions, and GC-MS analyses of the female sex pheromone revealed that the main component was (Z)-5-dodecenyl acetate (Z5-12: OAc, component I). The GC-MS analysis also indicated that the pheromone gland extract included another three monounsaturated components, (Z)-5-dodecen-l-ol (Z5-12: OH, component II), (Z)-7-tetradecenyl acetate (Z7-14: OAc, component III), and (Z)-7-tetradecen-l-ol (Z7-14: OH, component IV) in the following ratio: I:II:III:IV=100:6:15:1. In a paddy field, the mixture of synthetic I, II, and III in a ratio of 100:6:15 showed stronger attractancy than the virgin female, while the role of IV was unknown.
Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 183, Fuchu, Tokyo, Japan.
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Ando
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Ohno
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Kokuryu
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Funayoshi
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Nomura