| 拟小食螨瓢虫捕食六点始叶螨的初步观察 |
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| 引用本文： | 张方平,韩冬银,张敬宝,符悦冠.拟小食螨瓢虫捕食六点始叶螨的初步观察[J].昆虫知识,2010,47(6):1236-1239. |
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| 作者姓名： | 张方平 韩冬银 张敬宝 符悦冠 |
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| 作者单位： | 中国热带农业科学院环境与植物保护研究所农业部热带农林有害生物入侵与控制重点开放实验室海南省热带农业有害生物检测监控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,儋州571737 |
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| 基金项目： | 国家支撑计划，海南省基金 |
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| 摘 要： | 在室内以六点始叶螨Eotetranychus sexmaculatus(Riley)为猎物观察了拟小食螨瓢虫Stethorusparapauperculus Pang的发育历期、捕食量、捕食作用及干扰效应。研究结果表明:拟小食螨瓢虫取食六点始叶螨时完成一个世代需23.2 d,幼虫1～4龄的捕食量分别为9.5、14.5、19.5、64.2头六点始叶螨成螨;成虫期对六点始叶螨成螨的捕食量高达880.4头,拟小食螨瓢虫对六点始叶螨的捕食作用符合HollingⅡ方程,拟合的模型方程为Na=1.3843 N/(1+0.0231N),日均最大捕食量为43.29头;拟小食螨瓢虫的捕食率与个体间的干扰效应用Hassell-Varley(1959)模型拟合为E=0.4690P-0.5470。
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| 关 键 词： | 六点始叶螨 拟小食螨瓢虫 功能反应 干扰效应 |
Predation of Stethorus parapauperculus on Eotetranychus sexmaculatus |
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| ZHANG Fang-Ping,HAN Dong-Yin,ZHANG Jing-Bao,FU Yue-Guan.Predation of Stethorus parapauperculus on Eotetranychus sexmaculatus[J].Entomological Knowledge,2010,47(6):1236-1239. |
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| Authors: | ZHANG Fang-Ping HAN Dong-Yin ZHANG Jing-Bao FU Yue-Guan |
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| Institution: | (Environment and Plant Protection Institute,CATAS;Key Laboratory of Monitoring and Control of Tropical Agricultural and Forest Invasive Alien pests,Ministry of Agriculture,The People＇s Republic of China;Key Laboratory of Pests Detection and Control for Tropical Agriculture,Hainan Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pest,Danzhou 571737,China) |
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| Abstract: | Predatory behavior of the lady beetle Stethorus parapauperculus Pang on Eotetranychus sexmaculatus（Riley） was investigated under laboratory conditions.The mean development time of S.parapauperculus feeding on E.sexmaculatus was 23.6 d.1st-4th instar S.parapauperculus larvae can prey on 9.5,14.5,19.5,64.2 adult spider mites respectively,while adults can prey on 880.4 spider mites.The functional response of the adult lady beetle to E.sexmaculatus fitted the Holling model Na=1.3843N/（1 ＋ 0.0231N）,and a χ2 test confirmed that the theoretical value calculated by the fitted Holling disc equation conformed well with observed values.The functional response of adult S.parapauperculus to their own density fitted the Watt model;E = 0.4690P-0.5470. |
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| Keywords: | Eotetranychus sexmaculatus Stethorus parapauperculus functional responses interference effect |
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