Quantitative evaluation of the biological control efficiency of predatory insects based on rubidium marking method
Author of the article:CAI Zhi-Ping1, 2** XIAO Yun-Li3 OUYANG Fang2 GE Feng1, 2 ZHANG Jian-Ping1***
Author's Workplace：1. Agricultural College of Shihezi University, Shihezi 832003, China; 2. State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; 3. Station of Plant Protection, Agriculture Department of Shandong, Jinan 250100, China
Key Words：natural enemy insect; rubidium labeling; biological control; transfer and diffusion
Abstract：[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.