Survey of overwintering Halyomorpha halys (Hemiptera: Pentatomidae) in ports of export and natural landscapes surrounding the ports in Republic of Korea.

Halyomorpha halys (Hemiptera: Pentatomidae), an important agricultural and nuisance pest, is highly invasive with peculiar hiding behavior in human-made structures for overwintering. To evaluate the contamination risk of overwintering H. halys in non-agricultural export goods, we conducted a two-year field survey in Republic of Korea to locate overwintering H.