Trajectory modeling revealed a southwest ‐northeast migration corridor for fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) emerging from the North China Plain

Graphical Abstract: Trajectory modeling revealed a southwest ‐northeast migration corridor for fall armyworm (Spodoptera frugiperda J. E. Smith) (Lepidoptera: Noctuidae) emerging from the North China Plain. The spatiotemporal extent of the nocturnal migratory movements of fall armyworm from the North China Plain was simulated using the trajectory analysis approach based on historical meteorological data from June to October of 2015 ‐2019. The topography‐induced windborne displacement of newly emerged moths from the North China Plain was concentrated in Liaoning, Jilin and Heilongjiang provinces before late summer, and Hubei, Anhui and Hunan provinces after late summer. AbstractThe fall armywormSpodoptera frugiperda, an invasive insect pest native to the Americas, has established populations throughout eastern China. The North China Plain —a key corn‐producing area in East China with a unique topography—was invaded by fall armyworm in 2019 and is seriously threatened by this migratory pest. However, the spatiotemporal extent of the migratory movements of fall armyworm from the North China Plain remains poorly understood. Using an air transport‐based trajectory modeling approach that incorporates flight behavior, we simulated the potential nocturnal migration trajectories of fall armyworm from the North China Plain based on historical meteorological data from June to October of 2015–2019, and examined the night‐time atmospheric conditions associated with their...
Source: Insect Science - Category: Biology Authors: Tags: ORIGINAL ARTICLE Source Type: research