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当前位置: 首页 > 文章 > 东亚小花蝽对黄胸蓟马的室内捕食作用研究 应用昆虫学报 2019 (1) 91-98
Position: Home > Articles > Predation of Orius sauteri on Thrips hawaiiensis in the laboratory Chinese Journal of Applied Entomology 2019 (1) 91-98

东亚小花蝽对黄胸蓟马的室内捕食作用研究

作  者：
付步礼;邱海燕;李强;孙衍汤;周世豪;杨石有;李善光;唐良德;张方平;刘奎
单  位：
中国热带农业科学院环境与植物保护研究所农业农村部热带作物有害生物综合治理重点实验室海南省热带作物病虫害生物防治工程技术研究中心;海南大学热带农林学院
关键词：
东亚小花蝽;黄胸蓟马;生物防治;捕食作用
摘  要：
【目的】为明确东亚小花蝽Orius sauteri对黄胸蓟马Thrips hawaiiensis的捕食作用及生物防治潜能。【方法】室内系统研究了东亚小花蝽不同虫态对黄胸蓟马不同虫态的捕食功能反应、寻找效应、自身密度的干扰反应与捕食选择性。【结果】东亚小花蝽对黄胸蓟马的捕食功能反应符合HollingⅡ型,东亚小花蝽5龄若虫与成虫分别对黄胸蓟马2龄若虫和成虫的捕食能力(a'/Th)最强,分别为126.64头和64.30头,捕食上限(1/Th)最大,分别为149.25头/d和84.75头/d。东亚小花蝽对黄胸蓟马的捕食量与黄胸蓟马猎物密度正相关,但寻找效应与猎物密度呈负相关,东亚小花蝽高龄若虫与成虫对黄胸蓟马表现出较高的寻找效应。东亚小花蝽对黄胸蓟马的捕食作用同时受自身密度的影响,随着天敌密度的增大,平均捕食率随之降低,表明东亚小花蝽对黄胸蓟马的捕食作用存在较强的种内干扰反应,该反应符合Hassell模型方程。捕食选择性试验表明,东亚小花蝽对黄胸蓟马2龄若虫的捕食偏好性最强,其次为成虫,对伪蛹喜好性较弱。【结论】东亚小花蝽对黄胸蓟马具有较强的捕食能力,所获研究结果为正确评价东亚小花蝽对黄胸蓟马的生防潜能提供了理论依据。
译  名：
Predation of Orius sauteri on Thrips hawaiiensis in the laboratory
作  者：
FU Bu-Li;QIU Hai-Yan;LI Qiang;SUN Yan-Tang;ZHOU Shi-Hao;YANG Shi-You;LI Shan-Guang;TANG Liang-De;ZHANG Fang-Ping;LIU Kui;The Ministry of Agriculture and Rural Affairs Key Laboratory of Integrated Pest Management of Tropical Crops, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Engineering Research Center of Tropical Crops Pest Biological Control;Institute of Tropical Agriculture and Forestry, Hainan University;
单  位：
FU Bu-Li%QIU Hai-Yan%LI Qiang%SUN Yan-Tang%ZHOU Shi-Hao%YANG Shi-You%LI Shan-Guang%TANG Liang-De%ZHANG Fang-Ping%LIU Kui%The Ministry of Agriculture and Rural Affairs Key Laboratory of Integrated Pest Management of Tropical Crops, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Engineering Research Center of Tropical Crops Pest Biological Control%Institute of Tropical Agriculture and Forestry, Hainan University
关键词：
Orius sauteri;;Thrips hawaiiensis;;biological control;;predation
摘  要：
[Objectives] To evaluate the potential of Orius sauteri as a biological control for the thrip Thrips hawaiiensis.[Methods] The functional response, search efficiency, interference response and prey preferences, of O. sauteri preying on T.hawaiiensis were observed under laboratory conditions. [Results] Predation of O. sauteri on T. hawaiiensis followed a Holling-type II functional response. The highest predation rates were recorded for 5 th-instar nymphs and adults of O. sauteri preying on 2 nd-instar nymphs and adults of T. hawaiiensis, which had a'/Th values of 126.64 and 64.30 individuals and 1/Th for149.25 and 84.75 individuals per day, respectively. Predation rate was positively correlated with prey density but there was a negative relationship between search efficiency and prey density. 5 th-instar nymphs and adults of O. sauteri were more effective in prey searching than other developmental stages. Mean predation rate decreased with increasing predator density,which suggests that intraspecific interference adversely affects predation efficiency at high predator densities and that the relationship between predation rate and predator density approximates a Hassell-model equation. A choice-test indicated that O.sauteri has a strong preference for 2 nd-instar nymphs of T. hawaiiensis, followed by adults, and a relatively low preference for pupae. [Conclusion] O. sauteri is an effective predator of T. hawaiiensis. These results provide a theoretical basis for evaluating the potential of O. sauteri as a biological control for T. hawaiiensis.

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