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http://dx.doi.org/10.5656/KSAE.2009.48.1.037

Occurrence of Stink Bugs and Pecky Rice Damage by Stink Bugs in Paddy Fields in Gyeonggi-do, Korea  

Lee, Jin-Gu (Gyeonggi-do Agricultural Research and Extension Services)
Hong, Soon-Sung (Gyeonggi-do Agricultural Research and Extension Services)
Kim, Jin-Young (Gyeonggi-do Agricultural Research and Extension Services)
Park, Kyeong-Yeol (Gyeonggi-do Agricultural Research and Extension Services)
Lim, Jae-Wook (Gyeonggi-do Agricultural Research and Extension Services)
Lee, Joon-Ho (Department of Agricultural Biotechnology, Seoul National University)
Publication Information
Korean journal of applied entomology / v.48, no.1, 2009 , pp. 37-44 More about this Journal
Abstract
This study was carried out to survey the occurrence of stink bugs and pecky rice grain caused by the stink bugs in paddy fields in six districts of Gyeonggi-do. In the levee of the paddy fields, 30 species of the stink bugs were collected, and the dominant species were Paromius exiguus in Hwaseong and Siheung, and Stenotus rubrovittatus in Pyeongtaek, Icheon and Paju. In the paddy fields, 23 species were collected, and the dominant species were Paromius exiguus in Siheung, and Stenotus rubrovittatus in Pyeongtaek, Icheon and Paju. P. exiguus overwintered and proliferated mainly in the west coastal region, where its host plants, Imperata cylindrica and Calamagrostis epigeois, were abundant, and then moved to paddy fields later in the season, resulting in the peak density in September in paddy area. Stenotus rubrovittatus and Cletus punctiger were abundant in paddy area in August and September, and Eysarcoris aeneus was abundant in June and July. When the stink bugs were inoculated on the rice, the rate of pecky rice caused by E. aeneus and P. exiguus at milk ripe stage was 10.2% and 4.8%, respectively, and the rate by S. rubrovittatus and P. exiguus at dough ripe stage was 4.3% and 2.7%, respectively. The damage shape of pecky rice was distinctive according to the species. The surface of pecky rice by P. exiguus was very smooth but the surface of pecky rice by E. aeneus was rough and caved. In the pecky rice by S. rubrovittatus, the spot occurred at the topside of the grain.
Keywords
Rice; Stink bug; Pecky rice;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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