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PLoS One

Title:		Survey of overwintering Halyomorpha halys (Hemiptera: Pentatomidae) in ports of export and natural landscapes surrounding the ports in Republic of Korea
Author(s):		Song H; Jung M; Hwang S; Kim J; Kim D; Lee DH;
Address:		"Department of Life Sciences, Gachon University, Seongnam-si, Gyeonggi-do, South Korea. Department of Vector Entomology, Kyungpook National University, Sangju, Gyeongsangbok-do, South Korea. Department of Plant Protection and Quarantine, Graduate School of Plant Protection and Quarantine, Kyungpook National University, Daegu, South Korea"
Journal Title:		PLoS One
Year:		2022
Volume:		20220826
Issue:		8
Page Number:		e0270532 -
DOI:		10.1371/journal.pone.0270532
ISSN/ISBN:		1932-6203 (Electronic) 1932-6203 (Linking)
Abstract:		"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. halys in two major ports of export, Ulsan and Pyeongtaek ports, and monitored both active and overwintering H. halys population levels with varying distances from the ports ranging from 1 km to 48 km. First, we deployed wooden shelters in the two ports to catch dispersing H. halys for overwintering and conducted visual inspections for human-made structures in the ports to locate overwintering H. halys. In addition, we sampled dead trees to find overwintering H. halys in wooded areas. Second, we monitored active H. halys populations using pheromone traps with varying distances from the ports. From the survey of overwintering populations, no H. halys was collected from wooden shelters deployed in the two ports. However, we found four adults overwintering in human-made structures in Pyeongtaek port in the first year of survey. One dead adult was also found from a dead tree located in a wooded area adjacent to Pyeongtaek port in the second year. For active populations, results of pheromone trapping indicated that H. halys populations were present during autumn dispersal period not only in agricultural areas, but also in wooded areas adjacent to the two ports. This study reports for the first time that overwintering H. halys were found from the inside the port of export in its native areas with a low density. The results were discussed for evaluating contamination risk of overwintering H. halys in export goods shipping from the Republic of Korea"
Keywords:		Animals *Heteroptera Pheromones Republic of Korea Trees;
Notes:		"MedlineSong, Hyunsung Jung, Minhyung Hwang, Seoyul Kim, Jiseok Kim, Donghun Lee, Doo-Hyung eng 2022/08/27 PLoS One. 2022 Aug 26; 17(8):e0270532. doi: 10.1371/journal.pone.0270532. eCollection 2022"