广东地区草地贪夜蛾春夏季迁出种群的降落区域分布  

Distribution of the landing area for spring and summer emigrants of the fall armyworm,Spodoptera frugiperda in Guangdong Province

作　　者：梁雅洁 陈婷[2] 黄德超 陈皓阳 胡高[1] 齐国君[2] LIANG Ya-Jie;CHEN Ting;HUANG De-Chao;CHEN Hao-Yang;HU Gao;QI Guo-Jun(Department of Entomology,College of Plant Protection,Nanjing Agricultural University,Nanjing 210095,China;Guangdong Provincial Key Laboratory of High Technology for Plant Protection,Plant Protection Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China;Agricultural Pest Precaution and Management Center of Guangdong Province,Guangzhou 510500,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]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 [3]广东省农业有害生物预警防控中心,广州510500

出　　处：《环境昆虫学报》2024年第6期1484-1494,共11页Journal of Environmental Entomology

基　　金：国家重点研发计划(2021YFD1400701);广西自然科学基金粤桂联合基金(2022GXNSFDA080003);科技基础资源调查专项(2023FY100500)。

摘　　要：为明确广东省草地贪夜蛾Spodoptera frugiperda春夏季迁出种群的降落区域,根据2020-2021年广东省草地贪夜蛾虫情监测数据,利用基于WRF 4.0模式的迁飞昆虫三维轨迹分析程序,模拟了广东不同生态区草地贪夜蛾春夏季迁出虫源的迁飞轨迹及降落地。结果表明,广东省草地贪夜蛾春夏季虫源主要向东北方向迁飞,80%以上的虫源主要降落在华南和江南地区,少量可波及江淮、黄淮、中国台湾、东南亚及日韩等地。3-4月迁出虫源主要降落在华南地区,5-6月逐渐向北偏移,福建、江西等地的轨迹落点明显增多,7月迁出虫源主要降落在江南地区。此外,利用江西定南、福建周宁及浙江桐乡的个例分析,反向验证了迁飞轨迹模拟的准确性。本研究明确了广东省是江南及华南地区草地贪夜蛾重要的北迁虫源地之一。To determine the landing area of spring and summer emigrants of Spodoptera frugiperda in Guangdong Province,the migratory trajectory and landing area of the fall armyworm during spring and summer were simulated and analyzed using a three-dimensional trajectory analysis program supported by the WRF 4.0 model,utilizing monitoring data of the fall armyworm in various ecological regions of Guangdong Province from 2020 to 2021.The results indicated that the fall armyworm moths in Guangdong Province predominantly migrated northeastward during spring and summer reasons.Over 80%of the fall armyworm emigrants from Guangdong Province landed in South China and the southern region of the Yangtze River.While a few moths could reach the Yangtze-Huaihe River Valley,Huang-Huaihe River Valley,Taiwan China,Southeast Asia,Japan and South Korea.Most emigrants of the fall armyworm in Guangdong Province primarily landed in South China between March and April.Subsequently,the landing area of the fall armyworm gradually shifted northward from May to June,with a significant increase in trajectory landing points in Fujian and Jiangxi Province.The southern region of the Yangtze River became the primary landing area for fall armyworm emigrants from Guangdong Province during July.Furthermore,the accuracy of the migration trajectory simulation was validated through three case studies in Dingnan of Jiangxi,Zhouning of Fujian and Tongxiang of Zhejiang.This study identified Guangdong Province as one of the key source areas for fall armyworm in the southern region of the Yangtze River and South China during its northward migration period.

关 键 词：草地贪夜蛾 迁出虫源 降落区域 轨迹分析 

分 类 号：Q968.1[生物学—昆虫学] S433[农业科学—农业昆虫与害虫防治]