定量评价天敌昆虫控害功能的铷元素标记技术
Quantitative evaluation of the biological control efficiency of predatory insects based on rubidium marking method
蔡志平1, 2** 肖云丽3 欧阳芳2 戈 峰1, 2 张建萍1***
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DOI：10.7679/j.issn.2095-1353.2019.043
作者单位：1. 石河子大学农学院，石河子 832003；2. 中国科学院动物研究所，农业虫害鼠害综合治理研究国家重点实验室，北京 100101；3. 山东省植物保护总站，济南 250100
中文关键词：天敌昆虫；铷元素标记；控害功能；转移扩散
英文关键词：natural enemy insect; rubidium labeling; biological control; transfer and diffusion
中文摘要：【目的】 自然天敌对害虫种群起着重要的生态调控作用，定量地阐明天敌昆虫的取食关系及转移扩散规律，可为客观地评价天敌的控害功能提供依据。【方法】 本文以苹果树与蛇床草Cnidium monnieri (L.) Cuss组成的微景观系统为研究对象，以蛇床草-胡萝卜微管蚜-异色瓢虫为研究主线，对植物和昆虫体内的铷元素含量进行检测。【结果】 利用铷元素标记手段，结合室内和大田取样两种途径，通过测定天敌昆虫体内铷元素含量，可定量地评价种植功能植物提高果园天敌控害的作用。【结论】 铷（Rb）元素标记技术是追溯天敌昆虫在农田生态系统中取食及转移扩散规律的重要手段。
英文摘要：[Objectives] Natural enemies play an important role in regulating pest populations. Understanding and mastering the feeding relationship and transfer and diffusion of natural enemies can provide a basis for quantitative evaluation of the control functions of natural enemies. [Methods] In this study, the micro-landscape system composed of apple trees (Malus pumila) and Cnidium monnieri (L.) Cuss. is taken as the research object. The main line of the C. monnieri and Celery aphid (Semiaphis heracleid Takahashi) and lady beetle (Harmonia axyridis (Pallas)) were used, to measure the content of rubidium in plants and insects. [Results] Two approach of laboratory and field sampling are combined by using the rubidium marking method. By measuring the content of rubidium in natural enemies, the effect of planting functional plants on the control of natural enemies in orchards was quantitatively evaluated. [Conclusion] The rubidium marking technique is an important method to trace the feeding and transfer of natural enemies in agroecosystem.