Incidence of Beet Leaf Spot Caused by Neocamarosporium betae in Korea

From June to August 2021, we surveyed diseases affecting beet (Beta vulgaris subsp. vulgaris) plants in Cheolwon, Hoengseong, and Pyeongchang regions in Gangwon Province, Korea. We observed severe leaf spot symptoms, such as brown to dark circular or irregular spots on the leaves, in plants. Disease...

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Bibliographic Details
Published inHangug gynnhaghoi ji Vol. 51; no. 1; pp. 63 - 68
Main Authors Gyo-Bin Lee, Hong-sik Shim, Wan-Gyu Kim, Weon-Dae Cho
Format Journal Article
LanguageEnglish
Published The Korean Society of Mycology 01.03.2023
한국균학회
Subjects
beet
beta vulgaris
leaf spot
neocamarosporium betae
생물학
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Summary:From June to August 2021, we surveyed diseases affecting beet (Beta vulgaris subsp. vulgaris) plants in Cheolwon, Hoengseong, and Pyeongchang regions in Gangwon Province, Korea. We observed severe leaf spot symptoms, such as brown to dark circular or irregular spots on the leaves, in plants. Disease incidence in the plant leaves in the fields investigated at the three locations ranged from 1 to 80%. Five single-spore isolates of Phoma sp. were obtained from the diseased leaves and identified as Neocamarosporium betae based on their cultural, morphological, and molecular characteristics. Three isolates of N. betae were subsequently tested to confirm their pathogenicity in beet plants via artificial inoculation. The tested isolates caused leaf spot symptoms in the inoculated plants, similar to those observed in the plants in the investigated fields. Therefore, our findings revealed N. betae as the pathogen causing beet leaf spot in Korea.
Bibliography:https://doi.org/10.4489/KJM.20230007
ISSN:0253-651X
2383-5249
DOI:10.4489/KJM.20230007