A Potent Sex Attractant of the Male Tea Tussock Moth, Euproctis Pseudoconspersa (Strand) (Lepidoptera: Lymantriidae) in Taiwan: Field and EAG Responses

臺灣茶毒蛾（Euproctis Pseudoconspersa）性費洛蒙之嗅覺電位反應與田間誘蟲試驗

蔡如秀(Ru-Shiow Tsai) ； 楊恩誠(En-Cheng Yang) ； 吳京一(Chin-Yih Wu) ； 曾信光(Hsin-Kuang Tseng) ； 周延鑫(Yien-Shing Chow)

《Zoological Studies》 38卷3期 (1999/07) Pp. 301-306

摘要

臺灣荼毒蛾（Euproctis pseudoconspersa）的性費洛蒙經過氣相層析、嗅覺電位反應（EAG）的比較、及田間誘蟲試驗後，證實其性費洛蒙的主要成分為R-10,14-dimethylpentadecyl isobutyrate ([R]-10Me14Me-15:iBu)。在EAG的反應中雄蛾對雌當量的反應比對合成性費洛蒙(R)-10Me14Me-15:iBu的反應為大。光學異構物(S)-10Me14Me-15:iBu亦能引起雄蛾反應，但其EAG反應較(R)-異構物及雌當量小。田間誘蟲的結果顯示20 μg劑量的合成性費洛蒙誘蟲效果與2隻處女雌蛾相同；但80 μg劑量則明顯比20μg處女蛾的誘蟲效果好。

關鍵字

臺灣荼毒蛾 ； 性費洛蒙

並列摘要

10,14-Dimethylpentadecyl isobutyrate (10Me14Me-15:iBu) was identified from extracts of pheromone glands of the female tea tussock moth, Euproctis pseudoconspersa (Strand) by use of gas chromatography in Taiwan. EAG records showed that (R)- and (S)-enantiomers, and pheromone extract could elicit male antennal responses. Crude pheromone extract elicited a larger EAG response than did (R)-10Me14Me-15:iBu, but the EAG response to the (S)-enantiomer was smaller than that to crude extract or to the (R)-enantiomer. In field tests, the (R)-enantiomer showed greater attraction than did either the (S)-enantiomer or racemic mixtures in July 1998. However, later in the season, the (R)-enantiomer and racemic mixtures showed a similar attractancy, and both were better than the (S)-enantiomer. Traps baited with 20 μg of racemic mixtures and those with 2 virgin females showed similar attractancies; however, more males were caught with 80-μg baited traps.

並列關鍵字

Euproctis pseudoconspersa ； 0,14-Dimethylpentadecyl isobutyrate ； Enantiomers ； Sex pheromone