蠼螋捕食草地贪夜蛾的行为及功能反应  

Behavioral and Functional Responses of Labidura riparia Pallas Preying on Spodoptera frugiperda

作　　者：田彩红[1] 曹华毅 张俊逸 刘晓光[2] 蔡婷 李国平[1] 黄建荣[1] 封洪强[1] TIAN Caihong;CAO Huayi;ZHANG Junyi;LIU Xiaoguang;CAI Ting;LI Guoping;HUANG Jianrong;FENG Hongqiang(Institute of Plant Protection,Henan Academy of Agricultural Sciences/Henan Key laboratory of Crop Pest Control/Key Laboratory of Integrated Pest Management on Crops in Southern Region of North China,Ministry of Agriculture and Rural Affairs of the People’s Republic of China/International Joint Research Laboratory for Crop Protection of Henan/Biological Pesticides Engineering Research Center of Henan Province,Zhengzhou 450002,China;College of Plant Protection,Henan Agricultural University/The State Key Laboratory of Wheat and Maize Crop Science,Zhengzhou 450002,China)

机构地区：[1]河南省农业科学院植物保护研究所/河南省农作物病虫害防治重点实验室/农业农村部华北南部作物有害生物综合治理重点实验室/河南省作物保护国际联合实验室/河南省生物农药工程研究中心,郑州450002 [2]河南农业大学植物保护学院/省部共建小麦玉米作物学重点实验室,郑州450002

出　　处：《中国生物防治学报》2021年第6期1160-1165,共6页Chinese Journal of Biological Control

基　　金：黄淮海夏玉米区(河南)草地贪夜蛾综合防控技术集成与示范(2019YFD0300105);河南省重大专项(201300111500);河南省农业科学院创新团队专项(2021TD14)。

摘　　要：为明确蠼螋对草地贪夜蛾的捕食作用,在温度(26±1)℃,相对湿度(75±5)%,光周期16L:8D的实验室条件下,观察了蠼螋5龄若虫对草地贪夜蛾卵、1~6龄幼虫和成虫的捕食行为和对6龄幼虫的捕食功能反应。结果表明:蠼螋5龄若虫对草地贪夜蛾卵和1~6龄幼虫均有捕食行为,对飞行能力弱的草地贪夜蛾成虫也具有捕食能力。蠼螋5龄若虫对草地贪夜蛾捕食过程中,并不取食完其整个虫体,而是咬食至猎物不动时,继续搜索捕食周围其他猎物。蠼螋5龄若虫对草地贪夜蛾6龄幼虫的捕食功能拟合HollingⅡ模型,日平均捕食量为2.85头,对入侵的草地贪夜蛾的为害具有一定的防控潜能。Predation of Labidura riparia Pallas preying on Spodoptera frugiperda was investigated by observing the predatory behaviors of 5^(th) instar nymphs of L.riparia to the eggs and 1―6^(th) instar larvae and adults of S.frugiperda and measuring the predation functional response of 5^(th) instar nymphs of L.riparia to 6^(th) instar larvae S.frugiperda at the conditions of(26±1)℃,(75±5)%RH and a photoperiod of 16L:8D.The results demonstrated that the 5^(th) instar nymphs of L.riparia showed strong predation capacity to the eggs,larvae and even the flightless adults of S.frugiperda.When L.riparia preyed on S.frugiperda,L.riparia did not eat up S.frugiperda completely;instead,L.riparia bited S.frugiperda until the preys could not move and then transferred to attack other preys.The predatory functional response of the 5^(th) instar nymphs of L.riparia to 6^(th) instar larvae S.frugiperda fitted well with Holling II model,with average preying number of 2.85 per day.L.riparia can be used as a potential local natural enemy to control the invasive pest S.frugiperda in the future.

关 键 词：蠼螋 草地贪夜蛾 捕食行为 功能反应 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]