SRP274252 PRJNA649670 Population genetic structure of Spodoptera exigua in China using double-digest restriction site-associated DNA sequencing The beet armyworm, Spodoptera exigua is one of the most notorious polyphagous pests which has caused serious economic losses in China. To effectively manage this pest, we investigated genomic polymorphism, genetic differentiation and populations genetic structure of S. exigua at nine sampling locations in China using a population genomics approach.