北方水稻和小麦种植区麦田灰飞虱种群发生动态及其带毒率研究  

Population dynamics and virus-carrying rate of small brown planthopper,Laodelphax striatellus in northern paddyfields

作　　者：徐艳博[1] 王孟伦[2] 朱金生[1] 韩兰芝[3] 陈法军[1] 

机构地区：[1]南京农业大学植物保护学院昆虫系,南京210095 [2]南京农业大学食品科技学院,南京210095 [3]中国农业科学院植物保护研究所,北京100193

出　　处：《应用昆虫学报》2013年第1期215-222,共8页Chinese Journal of Applied Entomology

基　　金：国家重点基础发展规划"973项目"(2010CB126200);国家公益性行业(农业)科研专项项目(200903051);国家自然科学基金(31272051);教育部霍英东基金应用课题(122033);中央高校基本科研业务费项目(KYZ201140)

摘　　要：灰飞虱Laodelphax striatellus(Fallén)是农业生产上的重要害虫之一,尤其是其传毒造成的危害更为严重。本文通过对山东省水稻种植区(包括稻麦轮作区与非轮作区)和小麦种植区灰飞虱田间种群发生量的系统调查、灯诱观测及其带毒率检测等得到如下研究结果:(1)与小麦种植区及水稻种植区非轮作麦田相比,稻麦轮作区麦田灰飞虱虫口密度高,可见稻麦轮作有利于灰飞虱种群发生危害;(2)山东省小麦种植区麦田灰飞虱仅发现携带黑条矮缩病毒,水稻种植区稻麦轮作田灰飞虱种群还检测到携带水稻条纹叶枯病毒;(3)灯诱高峰期灰飞虱带毒率与当地灰飞虱带毒率存在差异,说明有外来种群的迁入;(4)在检测的1 268头灯诱灰飞虱中只有1头体内同时检测到携带黑条矮缩病毒和水稻条纹叶枯病毒,可见灰飞虱可同时携带两种病毒,但概率极低。The small brown planthopper （SBPH） Laodelphax striatellus （Fall6n） is a very important agricultural pest which can cause major harm to rice crops by acting as a vector of the rice stripe virus （RSV） and rice black streaked dwarf virus （RBSDV）. In this study, the population dynamics of SBPH and its virus-carrying rate were systematically investigated and measured in rice-wheat fields （rotation treatment vs. non-rotation treatment） in Shandong Province. The results indicate that （ 1 ） a higher SBPH density was found in the rice-wheat rotation regions than in the non-rotation treatment, so it is presumed that SBPH favor the rice-wheat rotation regions; （2） only RBSDV was detected in the SBPH from wheat fields, whereas both RBSDV and RSV were detected in SBPH from rice fields; （3） different virus-carrying rates were found between light-trapped SBPH and the local SBPH population in Ningjin County; and, （4） from a total of 1 268 individuals tested, only one SBPH simultaneously carried both RBSDV and RSV, which indicates that SBPH can simultaneously carry both viruses but that such individuals are relatively rare.

关 键 词：灰飞虱 种群动态 带毒率 黑条矮缩病毒 条纹叶枯病毒 

分 类 号：S433.3[农业科学—农业昆虫与害虫防治]