Kairomone of the Egg-Larval Parasitoid, Ascogaster reticulatus WATANABE (Hymenoptera : Braconidae)
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概要
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The host-finding behavior of the egg-larval parasitoid, Ascogaster reticulatus WATANABE (Braconidae), was observed and the chemical properties of ovipositional stimulant (kairomone) were examined. Once the female wasp contacted a host egg mass of the smaller teatortrix (STT) moth, Adoxophyes sp., the antennal-host-searching and ovipositor-host-searching behavior were sequentially observed. The chemicals, soluble in polar solvents, on the egg mass were found to be the stimuli to release this behavior. The kairomonal activity was found in a female pupa; meconium, adult excretion, wings, and haemolymph in both sexes but with stronger activity in females. Female abdominal contents and the ovary were most active. The kairomone, extracted with water and 70% ethanol, was heat-stable and consisted of at least two components with different molecular weights. Besides the water-soluble chemical(s), a rather weakly active hexane-soluble chemical(s) was found in the egg-mass extract.
- 日本応用動物昆虫学会の論文
- 1982-02-25
著者
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Kainoh Yooichi
Laboratory Of Applied Entomolog.y Tokyo University Of Agriculture And Technology
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Tamaki Yoshio
Division Of Entomology National Institute Of Agricultural Sciences:(present Address)division Of Ento
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Tamaki Yoshio
Division Of Entomology National Institute Of Agricultural Sciences
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HIYORI Takayuki
Laboratory of Applied Entomolog.y, Tokyo University of Agriculture and Technology
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Hiyori Takayuki
Laboratory Of Applied Entomolog.y Tokyo University Of Agriculture And Technology
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