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Resistance to Chestnut Gall Wasp (Dryocosmus kuriphilus) of Chestnut Cultivars Cultivated in Korea  

Kim, Mahn-Jo (Dept. of Forest Genetic Resources, Korea Forest Research Institute)
Hwang, Myoung-Soo (Dept. of Forest Genetic Resources, Korea Forest Research Institute)
Kim, Sun-Chang (Dept. of Forest Genetic Resources, Korea Forest Research Institute)
Lee, Uk (Dept. of Forest Genetic Resources, Korea Forest Research Institute)
Publication Information
Journal of Korean Society of Forest Science / v.96, no.3, 2007 , pp. 295-299 More about this Journal
Abstract
Resistance to chestnut gall wasp (Dryocosmus kuriphilus) of Korean prevailing chestnut cultivars, new cultivars released by Korea Forest Research Institute (KFRI), and local cultivars by growers was investigated to select optimal cultivars suitable for main chestnut producing areas. During three years investigated from 2004 to 2006, we could find no damage by chestnut gall wasp in any cultivars of test sites located in Gongju and Chungju of the central area. However, most cultivars of Gwangyang, Sancheong and Hapcheon sites located in the southern area showed a lot of damage by chestnut gall wasp. Hapcheon was most severe in comparison with regional damage by chestnut gall wasp. From comparison among cultivars, Kwangeun, Sandae, Eunsan and Idae released by KFRI showed no damage suggesting the highest resistant cultivars. On the contrary, over 20% in total damage by chestnut gall wasp was investigated in Tanzawa, Riheiguri, Kurakata-amaguri, Pyeonggi, Gwangdeok, Seil, Sinipyeong and Yumabyuni suggesting susceptible cultivars. In damage by chestnut gall wasp according to investigated position within tree, weak shoot was more severe than bearing shoot. Damage by chestnut gall wasp of major cultivars in Gwangyang, Sancheong and Hapcheon sites was remarkably decreased in 2006, and it seems to be caused by biological control by natural enemies such as Torymus sinensis.
Keywords
chestnut; chestnut gall wasp; cultivar; damage; resistance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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