湘中地区新入侵害虫草地贪夜蛾的发生情况及防治  

Occurrence and Control of the New Invasive Pest Spodoptera frugiperda in Middle Hunan

作　　者：王逸才 陈明田 颜健红 覃满飞 王玲 金晨钟[1] 胡军和[1] 谭显胜[1] WANG Yi-cai;CHEN Ming-tian;YAN Jian-hong;QIN Man-fei;WANG Ling;JIN Chen-zhong;HU Jun-he;TAN Xian-sheng(Key Laboratory of Pesticide Harmless Application,Hunan University of Humanities,Science and Technology,Loudi 417000,PRC;Plant Protection Station of Loudi City,Loudi 417000,PRC)

机构地区：[1]湖南人文科技学院农药无害化应用重点实验室,湖南娄底417000 [2]娄底市植保植检站,湖南娄底417000

出　　处：《湖南农业科学》2020年第1期54-56,共3页Hunan Agricultural Sciences

基　　金：湖南省科技计划项目(2019NK4170);湖南省应用特色学科(植物保护);湖南人文科技学院卓越人才培养计划资助项目(校教通2017第74号).

摘　　要：调查了草地贪夜蛾自2019年5月15日首次入侵湖南省娄底市以来,在全市所有85个乡镇街道的发生发展情况。5月20日至6月19日调查结果显示,全市玉米平均被害株率为9.14%,平均百株虫量为9.64头,6月4日便已扩展至全市所有乡镇,且各地区幼虫世代重叠,多龄幼虫混杂现象严重。8月22日统计,全市累计发生面积高达8313.33 hm^2,累计防治面积8746.67 hm^2。因地区差异性的影响,草地贪夜蛾在娄底地区为害情况与迁飞习性、产卵危害习性需进一步调查。The occurrence and development of Spodoptera frugiperda in all 85 villages and towns of Loudi City,Hunan Province were investigated since its first invasion on May 15,2019.Field investigation from May 20 to June 19 showed that the average damage rate of maize was 9.14%,the average number of insects on 100 plants was 9.64.By June 4,Spodoptera frugiperda had spread to all 85 villages and towns in Loudi,at the same time,larvae generations overlapped and multi-instar larvae mixed seriously in different regions.The cumulative occurrence area was as high as 8313.33 hm^2,and the cumulative control area was 8746.67 hm^2 until August 22.Due to the influence of regional differences,the damage,migration and oviposition habits of Spodoptera frugiperda in Loudi region need further investigation and study,which is intended to provide reference for the agricultural sector to prevent and control Spodoptera frugiperda better.

关 键 词：草地贪夜蛾 外来生物入侵 调查 防治 娄底 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]