Seasonal migratory activity of SPODOPTERA FRUGIPERDA (J.E. Smith) (Lepidoptera: Noctuidae) across China and Myanmar

• DOI: 10.1002/ps.7120
• Publication Date: 2022-08-07T15:04:18Z
• Authors: Shi‐shuai Ge; Hao‐wen Zhang; Da‐zhong Liu; Chun‐yang Lv; Xin‐zhu Cang; Xiao‐xu Sun; Yi‐fei Song; Wei He; Bo Chu; Sheng‐yuan Zhao; Qiu‐lin Wu; Xian‐ming Yang; Kong‐ming Wu
• Keywords: Fall armyworm

The fall armyworm (FAW) Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) invaded Myanmar and China in 2018 greatly impacted agricultural production ecosystem balance 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 of China-Myanmar border area using searchlight trap, assessed reproductive development status female migrants traced routes by trajectory simulation.FAW moths were trapped trap Lancang County (Yunnan, China) all year, with obvious differences number caught. There small-scale persistent trapping peaks spring summer, autumn; only small winter. Examination ovaries collected different seasons showed that most females had matured, indicating migrating did not take off from local area. In simulation, mainly migrated Southwest summer back autumn.Our findings indicate migrates according monsoon circulation, which will help guide cross-border regional monitoring management strategies against this pest. © 2022 Society Chemical Industry.