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- Title
Seasonal migratory activity of SPODOPTERA FRUGIPERDA (J.E. Smith) (Lepidoptera: Noctuidae) across China and Myanmar.
- Authors
Ge, Shi‐shuai; Zhang, Hao‐wen; Liu, Da‐zhong; Lv, Chun‐yang; Cang, Xin‐zhu; Sun, Xiao‐xu; Song, Yi‐fei; He, Wei; Chu, Bo; Zhao, Sheng‐yuan; Wu, Qiu‐lin; Yang, Xian‐ming; Wu, Kong‐ming
- Abstract
Background: The fall armyworm (FAW) Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) invaded Myanmar and China in 2018 and greatly impacted agricultural production and ecosystem balance in these areas. FAW is a migratory insect, but its seasonal migration pattern between the two countries has been largely unknown. From 2019 to 2021, we monitored the seasonal migration of FAW in the China–Myanmar border area using a searchlight trap, assessed the reproductive development status of female migrants and traced the migratory routes by trajectory simulation. Results: FAW moths were trapped by the searchlight trap in Lancang County (Yunnan, China) all year, with obvious seasonal differences in the number caught. There were small‐scale persistent trapping peaks in spring and summer, and obvious peaks in autumn; only a small number of moths were trapped in winter. Examination of the ovaries of female moths collected in different seasons showed that most females had matured, indicating that the moths were migrating and did not take off from the local area. In the migration trajectory simulation, FAW mainly migrated from Myanmar to Southwest China in spring and summer and back to Myanmar in autumn. Conclusion: Our findings indicate that FAW migrates between China and Myanmar according to the monsoon circulation, which will help guide cross‐border regional monitoring and management strategies against this pest. © 2022 Society of Chemical Industry.
- Subjects
MYANMAR; CHINA; NOCTUIDAE; LEPIDOPTERA; SEASONS; SPRING; AUTUMN; FALL armyworm; MOTHS; WINTER
- Publication
Pest Management Science, 2022, Vol 78, Issue 11, p4975
- ISSN
1526-498X
- Publication type
Article
- DOI
10.1002/ps.7120