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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (26): 48-54.doi: 10.11924/j.issn.1000-6850.casb16020091

所属专题： 园艺

• 植物保护 农药 • 上一篇    下一篇

拟环纹豹蛛和前凹豹蛛对小菜蛾的捕食作用

曾粮斌1,程 毅1,严 准1,马 骏2,任顺祥3,魏 林4,薛召东1   

  1. (1中国农业科学院麻类研究所,长沙 410205；2广东出入境检验检疫局检验检疫技术中心,广州 510623；3华南农业大学昆虫学系/生物防治教育部工程研究中心,广州 510640；4湖南省农业科学院植物保护研究所,长沙 410125）
  • 收稿日期:2016-02-25 修回日期:2016-08-29 接受日期:2016-04-25 出版日期:2016-09-21 发布日期:2016-09-21
  • 通讯作者: 马骏
  • 基金资助:
    中国农业科学院科技创新工程“南方经济作物有害生物防控”(ASTIP-IBFC09)；湖南省蔬菜产业技术体系“植保与产品安全岗位”；国家自然科学基金“壳寡糖诱导的苎麻抗夜蛾分子机制”(31501653)；现代农业产业技术体系“国家麻类产业技术体系虫害防控岗位”(CARS-19-E09)。

Predation of Pardosa pseudoannulata and Pardosa procurva Against Plutella xylostella

Zeng Liangbin1, Cheng Yi1, Yan Zhun1, Ma Jun2, Ren Shunxiang3, Wei Lin4, Xue Zhaodong1   

  1. (1Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205;2Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623;3College of Resource and Environment, South China Agricultural University/Engineering Research Centre of Biological Control, Ministry of Education, Guangzhou 510640;4Institute of Plant Protection, Hunan Academy of Agricultural Science, Changsha 410125)
  • Received:2016-02-25 Revised:2016-08-29 Accepted:2016-04-25 Online:2016-09-21 Published:2016-09-21

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摘要： 为了明确拟环纹豹蛛和前凹豹蛛对小菜蛾幼虫的捕食作用，通过研究不同温度下2种蜘蛛对小菜蛾幼虫捕食量和不同空间下拟环纹豹蛛对小菜蛾的捕食效应，利用三因子五水平二次通用回归旋转组合分析2种蜘蛛对小菜蛾幼虫的联合控制作用和拟环纹豹蛛对小菜蛾、斜纹夜蛾幼虫的控制作用。结果表明，2种蜘蛛对小菜蛾捕食量随温度增加出现先增加后降低。拟环纹豹蛛对小菜蛾的捕食作用大于前凹豹蛛，2种蜘蛛对小菜蛾四龄幼虫捕食功能反应符合Holling-Ⅱ型，但Holling-Ⅲ型能完善2种蜘蛛对小菜蛾幼虫的捕食作用评价。不同体积对拟环纹豹蛛的取食作用影响较大，瞬时攻击能力a′、处理1头猎物所用的时间Th和捕食作用a′/Th在小体积要高于大体积。2种蜘蛛对小菜蛾幼虫联合捕量与三者密度正相关，总体平均效应为：小菜蛾幼虫密度＞前凹豹蛛密度＞拟环纹豹蛛密度。小菜蛾和斜纹夜蛾密度能显著影响拟环纹豹蛛的取食量，但拟环纹豹蛛对小菜蛾幼虫和斜纹夜蛾幼虫没有偏嗜性。本研究可为评价这2种蜘蛛对田间小菜蛾的控制作用提供参考。

关键词: 青花菜, 青花菜, 农艺性状, 相关性, 主成分分析, 聚类分析

Abstract: In order to research the predation of Pardosa pseudoannulata and Pirata procurva on Plutella xylostella larvae, the predation amount of P. xylostella larvae by the two spiders under different temperatures and the predation amount of P. xylostella larvae by P. pseudoannulata under different volumes were analyzed. Based on three factors in five levels, the quadratic general regression rotation combination design was used to study the combined control effect of the two spiders on P. xylostella larvae and the control effect of P. pseudoannulata on the larvae of P. xylostella and Spodoptera litura. The results showed that the predation amount of the two spiders on P. xylostella larvae increased first and then decreased with the increase of temperature, and the functional predation response of P. pseudoannulata and P. procurva on the fourth instar larvae of P. xylostella fitted with the Holling-Ⅱ model, and the Holling-Ⅲ model could perfect the predation effect. Different volumes had great effect on the feeding of P. pseudoannulata. Instantaneous attack ability (a''), the time preying one diamondback moth (Th) and predation function (a''/Th) in a small volume were higher than that in a larger volume. The predation of the two spiders on P. xylostella was positively correlated with their densities. The overall effect of the factors was the density of P. xylostella＞the density of P. procurva＞the density of P. pseudoannulata. The densities of P. xylostella and S. litura larvae could affect the feeding amount of P. pseudoannulata. But there was no predation preference for P. pseudoannulata on the larve of P. xylostella and S. litura. The results will provide a reference for the evaluation of control effect of P. xylostella by P. pseudoannulata and P. procurvus in the field.