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Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Your Position :Home->Past Journals Catalog->2020年57 No.6

Immigration timing and origin of the first fall armyworms (Spodoptera frugiperda) detected in China
Author of the article:CHEN Hui YANG Xue-Li CHEN Ai-Dong LI Yong-Chuan WANG De-Hai LIU Jie HU Gao
Author's Workplace:Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Plant Protection and Plant Quarantine Station of Jiangcheng County, Jiangcheng 665900, China; Agricultural Environment and Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China; Plant Protection and Plant Quarantine Station of Yunnan Province, Kunming 650034, China; China National Agro-Tech Extension and Service Center, Beijing 100125, China
Key Words:Spodoptera frugiperda; insect sources; trajectory analysis; invasive species
[Objectives]  Fall armyworm (FAW; Spodoptera frugiperda) caterpillars were first detected in China a corn field in Baozang Township, Jiangcheng County, Yunnan Province on December 26, 2018. This study aims to clarify the timing of this invasion and the origin of these first fall armyworm colonists. [Methods]  An effective accumulated temperature model was used to estimate the developmental period and time of migration of the first fall armyworm arrivals in China. Their potential origin was identified using a three-dimensional trajectory analytical approach, and the effect of weather conditions on their migration was also analyzed. [Results]  The first fall armyworms to arrive in China probably migrated from the border with Myanmar and Thailand to Jiangcheng between 21 and 23 November, 2018. The weak southeasterly winds that prevailed in southern Yunnan in November and December 2018 were unsuitable for windborne migration, but a continuous southwest airflow between 19 and 22 November was conducive to migration from the border with Myanmar and Thailand to Jiangcheng. [Conclusion]  The estimated invasion time and origin of the first fall armyworms detected in China can inform integrated pest management strategies for this emerging pest.
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