莲缢管蚜越冬寄主种类与寄主适应性研究  

Studies on Overwinter Host Species of Rhopalosiphum nymphaeae(L.)and Host Adaptability

作　　者：冯婧婧 周利琳 宁干喜 王永模[1] FENG Jingjing;ZHOU Lilin;NING Ganxi;WANG Yongmo(College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,Hubei,China;Institute of Vegetables,Wuhan Academy of Agricultural Sciences,Wuhan 430345,Hubei,China)

机构地区：[1]华中农业大学植物科学技术学院,湖北武汉430070 [2]武汉市农业科学院蔬菜研究所,湖北武汉430345

出　　处：《中国蔬菜》2024年第3期84-89,共6页China Vegetables

基　　金：湖北省重点研发计划项目(2022BBA0063)。

摘　　要：为明确莲缢管蚜越冬寄主种类及其适应性,调查了湖北武汉和洪湖地区莲缢管蚜的越冬寄主种类和越冬虫量,并采用生命表技术研究了不同寄主上的莲缢管蚜的寄主适应性。调查发现武汉和洪湖莲缢管蚜的主要越冬寄主均为紫叶李,占越冬总虫量的近80%。紫叶李上的越冬莲缢管蚜对菱的适应性最好,其次是莲藕和睡莲,在慈姑上不能建立种群,而采自菱和睡莲的莲缢管蚜均能很好地适应莲藕、睡莲、菱和慈姑,说明紫叶李上的越冬虫源可直接转移至莲藕为害,也可以经过菱和睡莲间接转移至莲藕为害。因此,建议在莲田周边限种紫叶李,或在紫叶李上的越冬虫源迁飞之前采取集中防治措施,以减少初侵染虫量。In order to definite the overwinter host species of Rhopalosiphum nymphaeae and its adaptibility,this study investigated the overwinter host species of R.nymphaeae(L.)and amount of overwinter insects in Wuhan and Honghu region,Hubei Province.This paper also studied the adaptability of R.nymphaeae on different hosts by life table technique.Investigation revealed that the major overwinter host of R.nymphaeae in Wuhan and Honghu was the purple leaf plum tree(Prunus cerasifera L.),accounting for nearly 80%of the total overwinter insect population.The overwinter R.nymphaeae on purple leaf plum tree had the best adaptability on water chestnuts(Trapa bispinosa Roxb.),followed by lotus,(Nelumbo nucifera Gaertn.)and water lily(Nymphaea tetragona Georgi.).It was impossible to establish population on arrowhead(Sagittaria sagittifolia L.).While,the R.nymphaeae collected from water chestnut and water lily all could well adapt to lotus,water lily,water chestnut and arrowhead,indicating that the source of overwinter insects on purple leaf plum tree could directly migrate to the lotus fields and indirectly transfer to the lotus fields via water chestnut or water lily.Therefore,we suggest to limit planting of purple leaf plum tree around the lotus fields,or taking centralized prevention and control measures before the migration of overwinter insect on purple leaf plum tree,so as to reduce the initial population of R.nymphaeae.

关 键 词：莲缢管蚜 越冬寄主 莲藕 寄主适应性 

分 类 号：S436.45[农业科学—农业昆虫与害虫防治]