北京梨园绿盲蝽及其天敌的种群动态

【目的】调查研究梨园绿盲蝽Apolygus lucorum (Meyer-Dür)及其天敌的种群动态， 为梨园绿盲蝽的预测预报和科学防治提供理论依据。【方法】2012-2013年利用色板诱集法和目测法， 对北京市农林科学院林业果树研究所梨园的绿盲蝽及其天敌的种群动态进行了系统调查和分析。【结果】绿板调查结果显示， 绿盲蝽在梨园的发生有2个高峰期， 第1个峰值远高于第2个峰值， 主要发生高峰期为5月下旬至6月中旬。目测调查结果显示， 2012年， 绿盲蝽有两个发生高峰期， 5月中旬达到第1个峰值， 5月下旬达到第2个峰值； 2013年， 绿盲蝽仅有5月下旬一个发生高峰期。2012和2013年天敌主要发生高峰期均为6月上旬至下旬。梨园调查到的天敌主要为捕食类天敌， 包括蜘蛛和天敌昆虫， 其中天敌昆虫有7种隶属3目3科。天敌的优势种类为蜘蛛、 龟纹瓢虫、 异色瓢虫、 中华草蛉。【结论】天敌的发生与绿盲蝽有明显的时间和数量跟随关系。

Population dynamics of Apolygus lucorum (Hemiptera: Miridae) and its natural enemies in a pear orchard in Beijing

Aim】 In order to provide theoretical basis for forecast and scientific control of Apolygus lucorum (Meyer-Dür), we surveyed the population dynamics of A. lucorum and its natural enemies in the pear orchards. 【Methods】 The population dynamics of A. lucorum and its natural enemies were studied by green sticky traps and visual investigation from 2012 to 2013 in a pear orchard of Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences. 【Results】 The green sticky traps results showed that A. lucorum had two occurrence peaks, and the first peak was much higher than the second. The main peaks of A. lucorum appeared in late May to middle of June. However, the visual investigation indicated that A. lucorum had two occurrence peaks in mid May and late May in 2012, but had only one occurrence peak in late May in 2013. The peak of natural enemies mainly happened in early June to late June in 2012 and 2013. The main natural enemies were predators, including spiders and insects. The natural enemy insects included 7 species belonging to 3 families of 3 orders. The dominant predators were spiders, Chrysoperla sinica (Tjeder), Harmonia axyridis (Pallas) and Propylea japonica (Thunberg). 【Conclusion】 There are obvious pursuing relationships in time and quantity between green plant bugs and their natural enemies.