马铃薯块茎蛾寄主定向/识别的化学机制研究

马铃薯块茎蛾为我国西南地区、尤其是云南省贮藏期块茎上的重要害虫。该虫对马铃薯块茎有极强的趋性与识别能力，在田间自然状态下，雌蛾能够迅速趋向100米开外的新鲜马铃薯块茎；而将非寄主植物－核桃果皮粗提物置于块茎中/周围时，能极显著地抑制雌蛾在块茎上的产卵行为。依据这一现象，本研究拟利用化学分析技术、行为观察/测定方法并结合田间试验研究块茎蛾雌虫寄主定向、识别行为的化学机制，在此基础上，探索利用引诱剂、驱避剂构建高效的PUSH-PULL模式，用于调控雌蛾的产卵选择行为。

Potato tuber moth, Phthorimaea operculella, is a main pest against stored tuber in Yunnan. The moth females can detect and orient to the fresh tuber that is 100 meter away in fields. Also, the crude extract of a non-host, Juglans regia, can deter oviposition on tubers by females. We'll study the chemical mechanism of the moth to find and recognize their host/nonhost plants. After identification of active components from potato tubers and J. regia fruit-peel, the attractive-chemical and deterrrent-chemica will be combined with each other to test their push-pull effect against the oviposition behavior of the insect species. That will contribute to develop a suitable behavior-manipulation mode for control of potato tuber moth.