溪岸蠼螋对棉铃虫的捕食能力  

Predation capacity of Labidura riparia Pallas against Helicoverpa armigera(Hübner)

作　　者：田彩红[1] 张俊逸 徐存翊 李国平[1] 黄建荣[1] 刘毅 王根松[1] 封洪云[1] 尹新明[2] 封洪强[1] TIAN Caihong;ZHANG Junyi;XU Cunyi;LI Guoping;HUANG Jianrong;LIU Yi;WANG Gensong;FENG Hongyun;YIN Xinming;FENG Hongqiang(Biological Pesticides Engineering Research Center of Henan Province,International Joint Research Laboratory for Crop Protection of Henan,Key Laboratory of Integrated Pest Management on Crops in Southern Region of North China,Ministry of Agriculture and Rural Affairs,Henan Key Laboratory of Crop Pest Control,Institute of Plant Protection,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;Henan International Laboratory for Green Pest Control,College of Plant Protection,Henan Agricultural University,Zhengzhou 450002,China;Cotton Office of Agriculture and Rural Affairs Bureau of Taikang,Zhoukou 461400,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]河南省害虫绿色防控国际联合实验室,河南农业大学植物保护学院,郑州450002 [3]太康县农业农村局棉花办公室,周口461400

出　　处：《植物保护》2023年第1期157-163,共7页Plant Protection

基　　金：国家重点研发计划(2017YFD0201906);河南省科技攻关项目(222102240057);河南省农业科学院科技创新专项(2022TD13);河南省农业科学院基础性科研工作(2022JC14);国家现代农业产业技术体系(CARS-27);中原科技创业领军人才(224200510018)。

摘　　要：为明确棉田溪岸蠼螋Labidura riparia对棉铃虫的控害潜能,在实验室条件下观察和测定了溪岸蠼螋不同龄期的若虫、雌雄成虫对棉铃虫幼虫、蛹和成虫的捕食能力以及其5龄若虫和雌雄成虫的捕食选择性。结果表明:不同发育阶段的溪岸蠼螋都不捕食棉铃虫完整的蛹体,但对棉铃虫幼虫和成虫都具有较强的捕食能力。其中,雌性溪岸蠼螋成虫的捕食能力最强,对棉铃虫1龄幼虫日捕食量最大,为(31.3±1.1)头。1龄溪岸蠼螋若虫也具有一定的捕食能力,对棉铃虫1龄幼虫日捕食量为(1.7±0.7)头。不同龄期的溪岸蠼螋对相同龄期棉铃虫幼虫的捕食能力随龄期增加而增大。对1~3龄棉铃虫幼虫,溪岸蠼螋雌成虫捕食能力最强,其次是溪岸蠼螋雄成虫,再次是溪岸蠼螋5龄若虫。但是,对棉铃虫4~6龄幼虫和雌雄成虫,溪岸蠼螋雌雄成虫和5龄若虫的捕食量差异不显著。捕食选择试验表明:溪岸蠼螋5龄若虫和雌雄成虫对棉铃虫1~4龄幼虫均表现正喜好性,对5~6龄棉铃虫幼虫和雌雄成虫表现负喜好性。In order to clarify the potential pest control ability of Labidura riparia against Helicoverpa armigera in cotton field,the predation ability of different developmental stages of nymphs and adults and feeding preference of the 5th-instar nymphs and adults of L.riparia against larva,pupa and adults of H.armigera were observed and determined under laboratory conditions.The results showed that all the nymphs and adults of L.riparia did not prey on the intact pupae of H.armigera,but had a strong predation ability to the larva and adults of H.armigera.Among them,the female adult had the strongest predation ability,and the daily predation capacity to the first instar larvae of cotton bollworm was the largest,which was(31.3±1.1)individuals.The 1st instar L.riparia nymphs also had a certain predation ability,and the daily predation amount on the 1st instar larvae of H.armigera was(1.7±0.7)individuals.The predation capacity of L.riparia of different instars on the same instar larvae of H.armigera increased with the age growth.For the 1st-3rd instar larva of H.armigera,the female adults of L.riparia had the strongest predation ability,followed by the male adults of L.riparia,and then the 5th instar nymphs of L.riparia.However,there was no significant difference among the female,male adults and the 5th instar nymphs of L.riparia in the predation capacity to the 4th-6th instar larva,male and female adults of H.armigera.Feeding selection experiment showed that the 5th instar nymphs,male and female adults of L.riparia had the positive preference for the 1st to 4th instar larvae,and the negative preference for the 5th to 6th instar larvae,male and female adults of H.armigera,respectively.

关 键 词：溪岸蠼螋 棉铃虫 捕食能力 捕食选择性 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]