Population dynamics and seasonal migration patterns of Spodoptera exigua in northern China based on 11 years of monitoring data 1Shenyang Agricultural University, College of Plant Protection, Shenyang, Liaoning, China 2Liaoning Academy of Agricultural Sciences, Institute of Flower, Shenyang, Liaoning, China DOI 10.7717/peerj.17223 Academic Editor Dagmara Żyła Subject Areas Agricultural Science, Ecology, Entomology, Zoology, Population Biology Keywords Spodoptera exigua, Migration trajectory,...