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| Case study on the first immigration of fall armyworm, Spodoptera frugiperda invading into China |
SUN Xiao-xu1, 2*, HU Chao-xing3*, JIA Hui-ru2, WU Qiu-lin2, SHEN Xiu-jing2, ZHAO Sheng-yuan2, JIANG Yu-ying4, WU Kong-ming2 |
1 College of Plant Protection, Southwest University, Chongqing 400716, P.R.China
2 State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
3 Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Institute of Entomology, Guizhou University, Guiyang 550025, P.R.China
4 National Agro-Tech Extension and Service Center, Beijing 100125, P.R.China |
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摘要
草地贪夜蛾是世界最重要的农业害虫之一，迁入非洲和亚洲后对许多国家的粮食安全构成了重大威胁。我们于2018年3月在位于中缅边界的云南省澜沧县设置了空射诱虫灯监测草地贪夜蛾的迁入种群。结果显示，草地贪夜蛾成虫2018年12月11日始迁入中国，12月中旬形成首次迁入高峰。对捕获成虫的DNA鉴定表明迁入个体皆为玉米品系。田间调查显示首次迁入种群主要定殖在云南普洱、德宏和宝山地区的玉米田。迁飞轨迹模拟分析指出，首次迁入种群主要来自缅甸的中部和东部地区（20-25°N，94-100°E）。本研究证实了草地贪夜蛾成虫首次迁入和幼虫首次定殖中国的过程，对指导外来入侵生物的监测预警工作有重要价值。
Abstract The fall armyworm (FAW), Spodoptera frugiperda is one of the most damaging crop pests, and it has become major threat to the food security of many countries. In order to monitor possible invasion of this pest into China, a searchlight trap was established in March 2018 in western Yunnan Province, China, where it has served as the “first station” for many pests that have migrated from Myanmar to China. A number of suspected FAW moths were captured and identified by DNA sequencing. The results showed that the FAW moth was first captured on December 11 and formed its first immigration peak in mid-December 2018. DNA detection revealed that the early invading FAW population was the “corn-strain”. The field survey indicated that the pest mainly colonized corn in Pu’er, Dehong and Baoshan areas. Migration trajectory simulation implied that the moths might have mainly come from the eastern area in the mid-latitude region of Myanmar (20–25°N, 94–100°E). This case study confirmed the first immigration of FAW into China, and will be helpful for guiding monitoring and management work to control this pest.
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Received: 08 June 2019
Accepted:
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| Fund: This work was supported by the National Natural Science Foundation of China (31727901) |
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Corresponding Authors:
Correspondence WU Kong-ming, Tel: +86-10-82105551, E-mail:
wukongming@caas.cn
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| About author: * These authors contributed equally to this study |
Cite this article:
SUN Xiao-xu, HU Chao-xing, JIA Hui-ru, WU Qiu-lin, SHEN Xiu-jing, ZHAO Sheng-yuan, JIANG Yu-ying, WU Kong-ming.
2021.
Case study on the first immigration of fall armyworm, Spodoptera frugiperda invading into China. Journal of Integrative Agriculture, 20(3): 664-672.
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