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Overseas immigration of fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), invading Korea and Japan in 2019

文献类型： 外文期刊

作者： Wu, Ming-Fei 1 ; Qi, Guo-Jun 2 ; Chen, Hui 1 ; Ma, Jian 1 ; Liu, Jie 3 ; Jiang, Yu-Ying 3 ; Lee, Gwan-Seok 4 ; Otuka, Aki 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Peoples R China

2.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangdong Prov Key Lab High Technol Plant Protect, Guangzhou 510640, Peoples R China

3.China Natl Agrotech Extens & Serv Ctr, Div Pest Forecasting, Beijing 100026, Peoples R China

4.Natl Inst Agr Sci, Dept Agrofood Safety & Crop Protect, Wonju 55365, South Korea

5.Natl Agr & Food Res Org, Inst Agr Machinery, Tsukuba, Ibaraki 3058517, Japan

关键词： Asian migration arena; atmospheric circulation; Spodoptera frugiperda; trajectory analysis windborne insect migration

期刊名称：INSECT SCIENCE （ 2020影响因子：3.262； 五年影响因子：3.206 ）

ISSN： 1672-9609

年卷期：

页码：

收录情况： SCI

摘要： The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), spread rapidly in Africa and Asia recently, causing huge economic losses in crop production. Fall armyworm caterpillars were first detected in South Korea and Japan in June 2019. Here, the migration timing and path for FAW into the countries were estimated by a trajectory simulation approach implementing the insect's flight behavior. The result showed that FAWs found in both South Korea and Japan were estimated to have come from eastern China by crossing the Yellow Sea or the East China Sea in 10-36 h in three series of migrations. In the first series, FAW moths that arrived on Jeju Island during 22-24 May were estimated to be from Zhejiang, Anhui and Fujian Provinces after 1-2 nights' flights. In the second series, it was estimated that FAW moths landed in southern Korea and Kyushu region of Japan simultaneously or successively during 5-9 June, and these moths mostly came from Guangdong and Fujian Provinces. The FAW moths in the third series were estimated to have immigrated from Taiwan Province onto Okinawa Islands during 19-24 June. During these migrations, southwesterly low-level jets extending from eastern China to southern Korea and/or Japan were observed in the northwestern periphery of the western Pacific Subtropical High. These results, for the first time, suggested that the overseas FAW immigrants invading Korea and Japan came from eastern and southern China. This study is helpful for future monitoring, early warning and the source control of this pest in the two countries.

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