English
Occurrence of Verticillium Wilt of Kimchi Cabbage in Highland Areas of Korea
Nazila Saadati1, Oliul Hassan2, Hyo-won Choi3, Younggyu Lee1, Gyeryeong Bak1, and Jeomsoon Kim1*
1Highland Agriculture Research Institute, National Institute of Crop Science, RDA, Pyeongchang 25342, Korea
2Crop Protection Division, National Institute of Agricultural Sciences, RDA, Wanju, 55365, Korea
3Disaster Response Division, Extension Service Bureau, RDA, Jeonju, 54875, Korea
*Email: kimjs33@korea.kr
In 2022 and 2023, Kimchi cabbage cultivation areas in highland such as Taebaek-si and Gangneung-si suffered serious decreases in yield and quality due to yellowing and wilting symptoms. Among the 14 strains isolated from the diseased plants, 2 strains were identified as Verticillium dahliae and 12 strains as V. longisporum through morphological and molecular identification. As a result of the pathogenicity test on Kimchi cabbage, V. longisporum showed more severe yellowing and stunting symptoms than V. dahliae. In the host range test, V. dahliae showed strong pathogenicity on various crops such as Kimchi cabbage, radish, cabbage, leaf mustard, and kale, as well as on potato, eggplant, spinach, lettuce, watermelon, and soybean, while V. longisporum showed strong pathogenicity on Brassicaceae family, spinach, and soybean. Carrot, corn, godeulppaegi, and deodeok were not infected with either species. These results can be used to identify Verticillium wilt disease, which is currently causing the most damage to Kimchi cabbage in highland areas, and to select rotation crops in fields where the disease is prevalent. Biological and chemical methods are being researched to control this devastating disease.
