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中国生物防治学报 ›› 2017, Vol. 33 ›› Issue (1): 49-55.DOI: 10.16409/j.cnki.2095-039x.2017.01.008

• 研究论文 • 上一篇    下一篇

大草蛉幼虫捕食豆大蓟马和豆蚜的功能反应及生长发育

唐良德1, 王晓双1,2, 赵海燕3, 付步礼1, 邱海燕1, 刘奎1   

  1. 1. 中国热带农业科学院环境与植物保护研究所, 海口 571101;
    2. 华南农业大学农学院/广东省生物农药创制与应用重点实验室, 广州 510642;
    3. 海南省农业科学院植物保护研究所/海南省植物病虫害防控重点实验室, 海口 571100
  • 收稿日期:2016-06-06 出版日期:2017-02-08 发布日期:2017-01-24
  • 通讯作者: 赵海燕,博士,E-mail:haitianyiyan7611@163.com;刘奎,E-mail:lk0750@163.com
  • 作者简介:唐良德,副研究员,E-mail:tangldcatas@163.com
  • 基金资助:
    海南省应用技术研发与示范推广专项(ZDXM2015046);海南省省属科研院所技术开发研究专项(KYYS-2015-01)

The Predation Function Response and Development of Chrysopa pallens Larva on Megalurothrips usitatus and Aphis craccivora

TANG Liangde1, WANG Xiaoshuang1,2, ZHAO Haiyan3, FU Buli1, QIU Haiyan1, LIU Kui1   

  1. 1. Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China;
    2. Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province/College of Agriculture, South China Agricultural University, Guangzhou 510642, China;
    3. Hainan Key Laboratory for Control of Plant Diseases and Insect Pests/Institute of Plant Protection, Hainan Academy of Agricultural Sciences, Haikou 571100, China
  • Received:2016-06-06 Online:2017-02-08 Published:2017-01-24

摘要: 为了探讨大草蛉幼虫对2种豆科作物害虫的控害潜能和猎物适应性,室内研究了大草蛉幼虫对豆大蓟马和豆蚜的捕食功能反应以及两种猎物对大草蛉生长发育的影响。结果表明,大草蛉2、3龄幼虫对豆大蓟马和豆蚜的捕食功能反应均符合HollingⅡ模型。大草蛉2龄幼虫对豆大蓟马2龄若虫和豆蚜成虫以及大草蛉3龄幼虫对豆大蓟马成虫、2龄若虫和豆蚜成虫的理论最大捕食量分别为555.56、416.67头和588.24、1250.00、909.09头。搜寻效应结果表明,大草蛉2和3龄幼虫对豆大蓟马2龄若虫的搜寻效应均大于豆蚜。大草蛉取食豆蚜和豆大蓟马的未成熟期发育历期(1龄至成虫)分别为18.01和19.89 d,存活率分别为96.67%和93.33%,表明豆蚜和豆大蓟马均是适宜大草蛉生长发育的天然猎物。综合分析捕食功能和生长发育各参数,表明大草蛉对豆大蓟马和豆蚜均具有良好的控害潜能。

关键词: 大草蛉, 豆大蓟马, 豆蚜, 功能反应, 生长发育

Abstract: To clarify the potential pest control capacity and adaptability of Chrysopa pallens larvae to important leguminous insect pests, Megalurothrips usitatus and Aphis craccivora, the predation function response model was evaluated, and performace of C. pallens on the two insect pests were investigated in the laboratory. The results showed that the predation function response of C. pallens 2nd-instar and 3rd-instar larvae on M. usitatus and A. craccivora could be both fitted with HollingⅡ model. The highest maximum daily predatory capacity was 1250.00 for C. pallens 3rd-instar larvae on M. usitatus nymphs, while the lowest maximum daily predatory capacity was 416.67 for C. pallens 2nd-instar larvae on A. craccivora adults. The searching rate of C. pallens larvae decreased with the increase in prey density and was higher on M. usitatus than that on A. craccivora. The developmental period of immature C. pallens (from 1st-instar larvae to adult) on A. craccivora was 18.01 d, shorter than that on M. usitatus (19.89 d). In contrast, the survival rate on A. craccivora was 96.67%, higher than that on M. usitatus (93.33%). The results indicated that these two leguminous insect pests were suitable for development of C. pallens. These results indicate that the C. pallens is a potential natural enemy for M. usitatus and A. craccivora.

Key words: Chrysopa pallens, Megalurothrips usitatus, Aphis craccivora, function response, development

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