• 作者： 張永吉；寇融；周延鑫
• 作者服務機構： Institute of Zoology Accidentia Sinica Taipei, Taiwan Republic of China
• 中文摘要： 兩類簡單的Chromene化合物一早熟素Ⅰ及早熟素Ⅱ對某些種類昆蟲具有抗?春激素的作用，今將此類化合物滴加于小菜蛾雌處蛾腹部，再于Y型嗅覺測定器中，?察其對雄處蛾之性誘引力所受之影響。研究結果顯示，低于致死量的早熟素Ⅱ(5 and 10μg/female)，顯著地降低雌蟲之性誘引力，早熟素Ⅰ(0.50 and 1 μg/female)則無顯著效果，Hydroprene，一種?力的青春激素類似物，能增加雌蟲的性誘引力，以上實驗結果，支持此一想法：?經早熟素Ⅱ處理後，雌蟲?春激素之產生或分泌受到干擾，進而影響雌蟲性費洛蒙之釋放。 以經早熟素Ⅱ處理之雌蛾?餌之田間誘蟲初步試驗顯示此種室內發現將來在蟲害防治上之可用性。
• 英文摘要： Two simple chromene compounds known as precocene Ⅰand Ⅱ have been reported to have anti-juvenile hormone properties against certain insect species. These compounds were topically applied to virgin female diamondback moths in an effort to investigate their effects on sex attractancy to virgin males in a Y-choice olfactometer. Results from this study indicate that sublethal amounts of precocene Ⅱ (5 and 10μg/female) significantly reduces the sex attractancy by females. Precocene Ⅰ (0.50 and 1 μg/female) appears to be without effect in this regard. Hydroprene, a potent juvenile hormone analog, increases the sex attractancy of the female, which supports the belief that interference with juvenile hormone production and/or secretion by application of precocene ii may be operating in some way to affect pheromone release by the treated moths. Applicability of these findings in future pest control is indicated by results obtained in preliminary field testing of traps baited with precocene-treated females.
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