水稻二化螟在水稻留茬秸秆中越冬调查  

Investigation of Overwinter Population Density of Chilo suppressalis Inhabiting Rice Stubble

作　　者：周训军[1] 张美文[1] 章宜 王勇[1] 姜路帆 郑普阳 江泽玉 马志辉 ZHOU Xun-jun;ZHANG Mei-wen;ZHANG Yi;WANG Yong;JIANG Lu-fan;ZHENG Pu-yang;JIANG Ze-yu;MA Zhi-hui(Dongting Lake Station for Wetland Ecosystem Research,Key Laboratory for Agro-Ecological Processes in Subtropical Region,Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,PRC;Hunan Institute of Plant Protection,Changsha 410125,PRC;Yueyang Agriculture Bureau,Yueyang 414199,PRC)

机构地区：[1]中国科学院亚热带农业生态研究所,亚热带农业生态过程重点实验室,洞庭湖湿地生态系统观测研究站,湖南长沙410125 [2]湖南省植物保护研究所,湖南长沙410125 [3]岳阳县农业农村局,湖南岳阳414199

出　　处：《湖南农业科学》2019年第8期61-62,65,共3页Hunan Agricultural Sciences

基　　金：中国科学院信息化专项课题(XXH-13505-03-104)

摘　　要：2018年常德市周家店镇水稻二化螟为害严重,为了能更有效合理防治水稻二化螟,采用GB/T 15792-2009稻桩剥查法对该区域稻区的水稻二化螟越冬虫口密度进行调查。结果表明:该区域越冬前虫口密度最高达477 572头/667m^2,最低为243 121头/667m^2,平均388 250头/667m^2;越冬后虫口密度最高达252 793头/667m^2,最低为31 349头/667m^2,平均145 183头/667m^2。二化螟越冬后种群仍处在较高数量,且在越冬后调查期间已在田间发现二化螟成虫,需持续高度关注该区域二化螟的发生动态。为了降低水稻二化螟的越冬基数,应对稻茬进行适当的处理。Zhoujiadian,a town of Changde City,had suffered a serious damage from rich stem borers(Chilo suppressalis)in 2018.In order to prevent and control the pest more effectively,a stubble–scraping method of GB/T 15792—2009 was employed to investigate the overwintering population density of rich stem borers.Before overwintering,the highest population density was 7.164 million/hm^2,the lowest 3.646 million/hm^2,and the average 5.823 million/hm^2.After overwintering,C.suppressalis adults were found in the field,the population was still in a relatively high number with the highest density 3.791 million/hm^2,the lowest 0.47 million/hm^2 and the average 2.178 million/hm^2.Apart from dealing with rice stubble,it is necessary to pay close attention to the occurrence of C.suppressalis in this area.

关 键 词：水稻 二化螟 越冬虫量 稻茬 

分 类 号：S435.112[农业科学—农业昆虫与害虫防治]