龟纹瓢虫对梨瘿蚊幼虫的捕食作用及捕食偏好  

Predation and Preference of Propylea japonica on Dasineura pyri

作　　者：乔折艳 杨晓平[1] 董秀娟 杨雪琳 刘小侠 胡红菊[1,3] QIAO Zheyan;YANG Xiaoping;DONG Xiujuan;YANG Xuelin;LIU Xiaoxia;HU Hongju(Institute of Fruit and Tea,Hubei Academy of Agricultural Sciences,Wuhan 430064,China;College of Plant Protection,China Agricultural University,Beijing 100193,China;Laboratory of Hubei Hongshan area,Hongshan 430070,China)

机构地区：[1]湖北省农业科学院果树茶叶研究所,武汉430064 [2]中国农业大学植物保护学院,北京100193 [3]湖北洪山实验室,武汉430070

出　　处：《中国生物防治学报》2022年第5期1354-1360,共7页Chinese Journal of Biological Control

基　　金：国家重点研发计划(2020YFD1000202);农业部华中作物有害生物综合治理重点实验室/农作物重大病虫草害防控湖北省重点实验室开放基金课题(2020ZTSJJ10);现代农业产业技术体系(CARS-28-40);湖北省农业科技创新中心重大项目(2020-620-000-002-05)。

摘　　要：为明确龟纹瓢虫Propylea japonica(Thunberg)对梨瘿蚊Dasineura pyri(Bouche)幼虫的控害效能,在室内进行了龟纹瓢虫对梨瘿蚊幼虫的捕食能力及捕食偏好性试验。结果表明:龟纹瓢虫各龄期对梨瘿蚊幼虫的捕食功能反应均符合Holling-II模型,龟纹瓢虫1~4龄幼虫及成虫对梨瘿蚊幼虫的理论日最大捕食量分别为9.58、17.42、44.96、51.71和100.56头。在不同猎物密度设置下,各龄期龟纹瓢虫对猎物的捕食量随猎物密度的增加而升高,搜寻效应随猎物密度升高而下降。相同猎物密度设置下,随着龟纹瓢虫成虫自身密度的增加,单头龟纹瓢虫成虫日均捕食量逐渐降低。当梨瘿蚊与梨二叉蚜两种猎物共存时,龟纹瓢虫偏食梨二叉蚜。综合比较各龄期龟纹瓢虫对梨瘿蚊幼虫的相关捕食功能反应参数,成虫态龟纹瓢虫在各个方面能力均较1~4龄幼虫表现好,说明龟纹瓢虫成虫能够对梨瘿蚊幼虫发挥较好的控害作用。本研究可为龟纹瓢虫防控梨瘿蚊技术在田间的应用提供理论依据。The potential of Propylea japonica to control the larvae of Dasineura pyri was determined by measuring the predatory capacity and preference of P.japonica for the larvae of D.pyri under indoor conditions.The results showed that the predation by P.japonica all instars to D.pyri fitted well with the Holling-II model,the maximum daily theoretical predatory capacities of the 1st to 4th larvae and adults of P.japonica on the larvae of D.pyri were 9.58,17.42,44.96,51.71,and 100.56 aphids,respectively.Under different prey density settings,the predatory capacity of P.japonica all instars to the prey increased with increasing prey densities,while the searching efficiency decreased with the increase of prey densities.The average daily predation by P.japonica adults decreased with increasing self-density under the same prey density.P.japonica preferred Schizaphis piricola when both D.pyri and S.piricola were provided.A comprehensive comparison between larvae and adults of P.japonica shows that adult P.japonica can play a better control of the larvae of D.pyri,which serves as a theoretical basis for the field application of P.japonica for control of D.pyri.

关 键 词：龟纹瓢虫 梨瘿蚊 梨二叉蚜 捕食功能 干扰效应 捕食偏好 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]