我国草地贪夜蛾北迁格局及其虫源衔接关系  

The northward migration pattern of the fall armyworm in China from 2019 to 2022

作　　者：李建春 刘杰[2] 齐国君[3] 张国彦 黄建荣[5] 张海波 王蓓蓓 姜玉英[2] 胡高[1] LI Jian-Chun;LIU Jie;QI Guo-Jun;ZHANG Guo-Yan;HUANG Jian-Rong;ZHANG Hai-Bo;WANG Bei-Bei;JIANG Yu-Ying;HU Gao(Department of Entomology,College of Plant Protection,Nanjing Agricultural University,Nanjing 210095,China;China National Agro-Tech Extension and Service Center,Beijing 100125,China;Guangdong Provincial Key Laboratory of High Technology for Plant Protection,Institute of Plant Protection,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China;Plant Protection and Quarantine Station of Henan Province,Zhengzhou 450002,China;Institute of Plant Protection,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;Plant Protection and Quarantine Station of Jiangsu Province,Nanjing 210036,China;Plant Protection and Quarantine Station of Anhui Province,Hefei 230031,China)

机构地区：[1]南京农业大学植物保护学院昆虫系,南京210095 [2]全国农业技术推广服务中心,北京100125 [3]广东省农业科学院植物保护研究所,广东省植物保护新技术重点实验室,广州510640 [4]河南省植物保护植物检疫站,郑州450002 [5]河南省农业科学院植物保护研究所,郑州450002 [6]江苏省植物保护植物检疫站,南京210036 [7]安徽省植物保护植物检疫站,合肥230031

出　　处：《应用昆虫学报》2023年第4期1039-1051,共13页Chinese Journal of Applied Entomology

基　　金：国家重点研发计划项目(2021YFD1400700);江苏省现代农业项目(BE2020349);广西自然科学基金粤桂联合基金项目(2022GXNSFDA080003)。

摘　　要：【目的】草地贪夜蛾Spodoptera frugiperda是新入侵我国的重大跨境迁飞性害虫,探明该虫在我国的迁飞格局及虫源衔接关系,对全国草地贪夜蛾预测预报及精准防控意义重大。【方法】基于2019-2022年全国草地贪夜蛾虫情监测数据,结合历史气象资料,采用有效积温模型和轨迹分析方法,解析了草地贪夜蛾在我国的北迁过程及其虫源衔接关系。【结果】我国草地贪夜蛾春夏季迁飞格局主要包括3个主要发生区和3次大规模北迁过程,其中2-4月主要发生在华南地区,4月下旬-5月中旬大规模迁入长江以南地区(25°-30°N);5-6月主要发生在长江以南地区,6月迁入江淮、黄淮地区(30°-35°N);7-8月主要发生在江淮、黄淮地区,8月上中旬继续北迁至35°N以北地区。2019-2022年由于南向风速和降雨区域分布导致草地贪夜蛾北迁格局存在年度差异。【结论】探明了我国草地贪夜蛾的北迁格局及其虫源衔接关系,为该虫的监测预警和源头防控提供理论依据。[Objectives]The fall armyworm(Spodoptera frugiperda)is a notorious migratory pest that has invaded China since late 2018.Better understanding of the northward migration patterns of the pest will greatly improve the monitoring,forecasting and control of this pest.[Methods]Based on monitoring data collected from 2019 to 2022 and historical meteorological data,the northward migration and source of migrating fall armyworm in China were analyzed using effective temperature and trajectory analysis models.[Results]The northward migration pattern of the fall armyworm in spring and summer consisted of three primary occurrence zones and three large-scale northward migrations.The fall armyworm mainly occurred in southern China from February to April,then migrated in vast numbers into the southern regions of the Yangtze River(25°-30°N)from late April to middle May.It mainly remained in the southern regions of the Yangtze River from May to June,then migrated into the Jiang-Huai and Huang-Huai regions(30°-35°N)in June.Subsequently,it mainly remained in the Jiang-Huai and Huang-Huai regions between July and August,but continued to migrate northward of 35°N from early to middle August.There are significant annual differences in the migration patterns of the fall armyworm between 2019 and 2022 reflecting annual differences in the strength of the southward airflow and distribution of precipitation during this period.[Conclusions]The results reveal the northward migration patterns and source of migrating fall armyworm in China,which provides a basis for monitoring this pest,obtaining early warning of outbreaks,and preventing outbreaks by controlling source populations.

关 键 词：草地贪夜蛾 北迁格局 轨迹分析 虫源地 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]