Sclerotinia Shoot Rot of Grapevine (Vitis spp.) Caused by Sclerotinia sclerotiorum in Korea

Park, Jong Han; Han, Kyung Sook; Han, You Kyoung; Lee, Jung Sup; Kim, Dae Hyun; Hwang, Jeong Hwan

Research in Plant Disease 2009;15(3):259-261.
Published online December 30, 2009.

Sclerotinia sclerotiorum에 의한 포도나무 균핵병 발생

박종한, 한경숙, 한유경, 이중섭, 김대현, 황정환

Sclerotinia Shoot Rot of Grapevine (Vitis spp.) Caused by Sclerotinia sclerotiorum in Korea

Jong Han Park, Kyung Sook Han, You Kyoung Han, Jung Sup Lee, Dae Hyun Kim, Jeong Hwan Hwang

Abstract

Sclerotinia shoot rot of Grapevine(Vitis labruscana) occurred at Gapyeong and Yeongwol area from 2003 to 2005. Infected plants showed shoot blight at the one-year-old fruit bearing branches. The first visible symptom noticed was wilting and blighting of the branches. The obvious and typical initial symptom is the presence of a cottony, white, dense mat of mycelial growth on the surface of the diseased lesions. The base or stem of the infected young shoots develop a pale brown rotted area, which girdled and killed shoots. In advanced stages of the disease, stems and branches became bleached and eventually died. The isolates collected from diseased grapevine stem were identified as Sclerotinia sclerotiorum based on the morphological and cultural characteristics. The pathogenicity test revealed that Vitis vinifera(cultivar: Kyoho) was stronger than V. labruscana(cultivar: Campbell early) to the pathogen. This is the first report on sclerotinia shoot rot of grapevine in Korea.

Key Words: Grapevine, Sclerotinia shoot rot, Sclerotinia sclerotiorum