Case study on the first immigration of fall armyworm,Spodoptera frugiperda invading into China |
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| Authors: | Xiao-xu SUN Chao-xing HU Hui-ru JIA Qiu-lin WU Xiu-jing SHEN Sheng-yuan ZHAO Yu-ying JIANG Kong-ming WU |
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| Affiliation: | 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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| 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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| Keywords: | Yunnan Province China invasion accumulated temperature migration trajectory |
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