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Norio Arakaki - One of the best experts on this subject based on the ideXlab platform.
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Two Regional Strains of a Phoretic Egg Parasitoid, Telenomus euproctidis (Hymenoptera: Scelionidae), That Use Different Sex Pheromones of Two Allopatric Tussock Moth Species as Kairomones
Journal of Chemical Ecology, 1997Co-Authors: Norio Arakaki, Sadao Wakamura, Tetsuya Yasuda, Kenzou YamagishiAbstract:The egg parasitoid, Telenomus euproctidis Wilcox (Hymenoptera: Scelionidae), is phoretic on females of two allopatrically distributed tussock moths, Euproctis pseudoconspersa (Strand) and Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae). Crossing experiments between the two regional parasitoid strains indicated no evidence for their reproductive isolation. More wasps were found on the locally occurring host, E. pseudoconspersa, than on E. taiwana, when virgin females of the two moth species were exposed concurrently in the field for 24 hr in Ibaraki Japan. In Ibaraki, many wasps were caught in traps baited with the synthetic sex pheromone of E. pseudoconspersa, 10,14-dimethylpentadecyl isobutyrate (10Me14Me-15:iBu), but none with that of E. taiwana, (Z)-16-methyl-9-heptadecenyl isobutyrate (16Me-Z9-17:iBu) or blank traps. In Okinawa, Japan, more wasps were found on E. taiwana than on E. pseudoconspersa, and many wasps were caught in traps baited with 16Me-Z9-17:iBu, but only a few with 10Me14Me-15:iBu, and none with blank traps. These results suggest that local wasp strains discriminate between the two sex pheromones, and they strongly prefer the sex pheromone of the moth occurring at their location.
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Phoretic egg parasitoid,Telenomus euproctidis (Hymenoptera: Scelionidae), uses sex pheromone of tussock mothEuproctis taiwana (Lepidoptera: Lymantriidae) as a kairomone
Journal of Chemical Ecology, 1996Co-Authors: Norio Arakaki, Sadao Wakamura, Tetsuya YasudaAbstract:The phoretic egg parasitoid, Telenomus euproctidis Wilcox (Hymenoptera: Scelionidae) was found more frequently on virgin than on mated female moths of Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae), when virgin and mated moths were exposed concurrently in the field for 24 hr. A synthetic component of the moth's sex pheromone. ( Z )-16-methyl-9-heptadecenyl isobutyrate, attracted both the wasp, T. euproctidis , and male E. taiwana . These findings suggest that T. euproctidis uses the sex pheromone of the female moth, E. taiwana , as a kairomone to locate a host female moth and through her the host eggs.
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Identification of sex attractant pheromone components of the tussock moth,Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae).
Journal of chemical ecology, 1995Co-Authors: Tetsuya Yasuda, Sadao Wakamura, Norio ArakakiAbstract:Two compounds were isolated and identified from abdominal tips of the female tussock moth,Euproctis taiwana (Shiraki), by a combination of gas chromatography-electroantennographic detection, coupled gas chromatography-mass spectrometric analysis, microreaction, and synthesis. These compounds were (Z)-16-methyl-9-heptadecenyl isobutyrate (74.8%) and 16-methylheptadecyl isobutyrate (25.2%). Their total amount was determined to be ca. 29.8 ng/female. Field bioassays showed that (Z)-16-methyl-9-heptadecenyl isobutyrate is a sex attractant for the male moths. These chemical compounds had not previously been found as the sex pheromone components in the genusEuproctis.
Tetsuya Yasuda - One of the best experts on this subject based on the ideXlab platform.
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Two Regional Strains of a Phoretic Egg Parasitoid, Telenomus euproctidis (Hymenoptera: Scelionidae), That Use Different Sex Pheromones of Two Allopatric Tussock Moth Species as Kairomones
Journal of Chemical Ecology, 1997Co-Authors: Norio Arakaki, Sadao Wakamura, Tetsuya Yasuda, Kenzou YamagishiAbstract:The egg parasitoid, Telenomus euproctidis Wilcox (Hymenoptera: Scelionidae), is phoretic on females of two allopatrically distributed tussock moths, Euproctis pseudoconspersa (Strand) and Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae). Crossing experiments between the two regional parasitoid strains indicated no evidence for their reproductive isolation. More wasps were found on the locally occurring host, E. pseudoconspersa, than on E. taiwana, when virgin females of the two moth species were exposed concurrently in the field for 24 hr in Ibaraki Japan. In Ibaraki, many wasps were caught in traps baited with the synthetic sex pheromone of E. pseudoconspersa, 10,14-dimethylpentadecyl isobutyrate (10Me14Me-15:iBu), but none with that of E. taiwana, (Z)-16-methyl-9-heptadecenyl isobutyrate (16Me-Z9-17:iBu) or blank traps. In Okinawa, Japan, more wasps were found on E. taiwana than on E. pseudoconspersa, and many wasps were caught in traps baited with 16Me-Z9-17:iBu, but only a few with 10Me14Me-15:iBu, and none with blank traps. These results suggest that local wasp strains discriminate between the two sex pheromones, and they strongly prefer the sex pheromone of the moth occurring at their location.
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Phoretic egg parasitoid,Telenomus euproctidis (Hymenoptera: Scelionidae), uses sex pheromone of tussock mothEuproctis taiwana (Lepidoptera: Lymantriidae) as a kairomone
Journal of Chemical Ecology, 1996Co-Authors: Norio Arakaki, Sadao Wakamura, Tetsuya YasudaAbstract:The phoretic egg parasitoid, Telenomus euproctidis Wilcox (Hymenoptera: Scelionidae) was found more frequently on virgin than on mated female moths of Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae), when virgin and mated moths were exposed concurrently in the field for 24 hr. A synthetic component of the moth's sex pheromone. ( Z )-16-methyl-9-heptadecenyl isobutyrate, attracted both the wasp, T. euproctidis , and male E. taiwana . These findings suggest that T. euproctidis uses the sex pheromone of the female moth, E. taiwana , as a kairomone to locate a host female moth and through her the host eggs.
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Identification of sex attractant pheromone components of the tussock moth,Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae).
Journal of chemical ecology, 1995Co-Authors: Tetsuya Yasuda, Sadao Wakamura, Norio ArakakiAbstract:Two compounds were isolated and identified from abdominal tips of the female tussock moth,Euproctis taiwana (Shiraki), by a combination of gas chromatography-electroantennographic detection, coupled gas chromatography-mass spectrometric analysis, microreaction, and synthesis. These compounds were (Z)-16-methyl-9-heptadecenyl isobutyrate (74.8%) and 16-methylheptadecyl isobutyrate (25.2%). Their total amount was determined to be ca. 29.8 ng/female. Field bioassays showed that (Z)-16-methyl-9-heptadecenyl isobutyrate is a sex attractant for the male moths. These chemical compounds had not previously been found as the sex pheromone components in the genusEuproctis.
Sadao Wakamura - One of the best experts on this subject based on the ideXlab platform.
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Two Regional Strains of a Phoretic Egg Parasitoid, Telenomus euproctidis (Hymenoptera: Scelionidae), That Use Different Sex Pheromones of Two Allopatric Tussock Moth Species as Kairomones
Journal of Chemical Ecology, 1997Co-Authors: Norio Arakaki, Sadao Wakamura, Tetsuya Yasuda, Kenzou YamagishiAbstract:The egg parasitoid, Telenomus euproctidis Wilcox (Hymenoptera: Scelionidae), is phoretic on females of two allopatrically distributed tussock moths, Euproctis pseudoconspersa (Strand) and Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae). Crossing experiments between the two regional parasitoid strains indicated no evidence for their reproductive isolation. More wasps were found on the locally occurring host, E. pseudoconspersa, than on E. taiwana, when virgin females of the two moth species were exposed concurrently in the field for 24 hr in Ibaraki Japan. In Ibaraki, many wasps were caught in traps baited with the synthetic sex pheromone of E. pseudoconspersa, 10,14-dimethylpentadecyl isobutyrate (10Me14Me-15:iBu), but none with that of E. taiwana, (Z)-16-methyl-9-heptadecenyl isobutyrate (16Me-Z9-17:iBu) or blank traps. In Okinawa, Japan, more wasps were found on E. taiwana than on E. pseudoconspersa, and many wasps were caught in traps baited with 16Me-Z9-17:iBu, but only a few with 10Me14Me-15:iBu, and none with blank traps. These results suggest that local wasp strains discriminate between the two sex pheromones, and they strongly prefer the sex pheromone of the moth occurring at their location.
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Phoretic egg parasitoid,Telenomus euproctidis (Hymenoptera: Scelionidae), uses sex pheromone of tussock mothEuproctis taiwana (Lepidoptera: Lymantriidae) as a kairomone
Journal of Chemical Ecology, 1996Co-Authors: Norio Arakaki, Sadao Wakamura, Tetsuya YasudaAbstract:The phoretic egg parasitoid, Telenomus euproctidis Wilcox (Hymenoptera: Scelionidae) was found more frequently on virgin than on mated female moths of Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae), when virgin and mated moths were exposed concurrently in the field for 24 hr. A synthetic component of the moth's sex pheromone. ( Z )-16-methyl-9-heptadecenyl isobutyrate, attracted both the wasp, T. euproctidis , and male E. taiwana . These findings suggest that T. euproctidis uses the sex pheromone of the female moth, E. taiwana , as a kairomone to locate a host female moth and through her the host eggs.
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Identification of sex attractant pheromone components of the tussock moth,Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae).
Journal of chemical ecology, 1995Co-Authors: Tetsuya Yasuda, Sadao Wakamura, Norio ArakakiAbstract:Two compounds were isolated and identified from abdominal tips of the female tussock moth,Euproctis taiwana (Shiraki), by a combination of gas chromatography-electroantennographic detection, coupled gas chromatography-mass spectrometric analysis, microreaction, and synthesis. These compounds were (Z)-16-methyl-9-heptadecenyl isobutyrate (74.8%) and 16-methylheptadecyl isobutyrate (25.2%). Their total amount was determined to be ca. 29.8 ng/female. Field bioassays showed that (Z)-16-methyl-9-heptadecenyl isobutyrate is a sex attractant for the male moths. These chemical compounds had not previously been found as the sex pheromone components in the genusEuproctis.
Kenzou Yamagishi - One of the best experts on this subject based on the ideXlab platform.
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Two Regional Strains of a Phoretic Egg Parasitoid, Telenomus euproctidis (Hymenoptera: Scelionidae), That Use Different Sex Pheromones of Two Allopatric Tussock Moth Species as Kairomones
Journal of Chemical Ecology, 1997Co-Authors: Norio Arakaki, Sadao Wakamura, Tetsuya Yasuda, Kenzou YamagishiAbstract:The egg parasitoid, Telenomus euproctidis Wilcox (Hymenoptera: Scelionidae), is phoretic on females of two allopatrically distributed tussock moths, Euproctis pseudoconspersa (Strand) and Euproctis taiwana (Shiraki) (Lepidoptera: Lymantriidae). Crossing experiments between the two regional parasitoid strains indicated no evidence for their reproductive isolation. More wasps were found on the locally occurring host, E. pseudoconspersa, than on E. taiwana, when virgin females of the two moth species were exposed concurrently in the field for 24 hr in Ibaraki Japan. In Ibaraki, many wasps were caught in traps baited with the synthetic sex pheromone of E. pseudoconspersa, 10,14-dimethylpentadecyl isobutyrate (10Me14Me-15:iBu), but none with that of E. taiwana, (Z)-16-methyl-9-heptadecenyl isobutyrate (16Me-Z9-17:iBu) or blank traps. In Okinawa, Japan, more wasps were found on E. taiwana than on E. pseudoconspersa, and many wasps were caught in traps baited with 16Me-Z9-17:iBu, but only a few with 10Me14Me-15:iBu, and none with blank traps. These results suggest that local wasp strains discriminate between the two sex pheromones, and they strongly prefer the sex pheromone of the moth occurring at their location.
Kunhui Pan - One of the best experts on this subject based on the ideXlab platform.
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responses of tea tussock moth Euproctis pseudoconspersa to its pheromone r 10 14 dimethylpentadecyl isobutyrate and to the s enantiomer of its pheromone
Journal of Chemical Ecology, 1998Co-Authors: Chenghua Zhao, Jocelyn G Millar, Kunhui PanAbstract:Field trials were conducted with each synthetic enantiomer (>98% ee) and blends of the two synthetic enantiomers of the female-produced sex pheromone (10,14-dimethylpentadecyl isobutyrate) of the tea tussock moth, Euproctis pseudoconspersa. Male moths were attracted to each enantiomer alone and to various blends of them. Short syntheses of both enantiomers of the pheromone from commercially available (R)- and (S)-citronellyl bromide and a method of checking the enantiomeric purity of the citronellyl bromide enantiomers are described.
