First report of Chrysanthemum stem necrosis virus in the Republic of Korea
In September 2013, symptoms of stem necrosis, chlorotic and necrotic ring leaf spots, and leaf distortions were observed on chrysanthemum plants (Chrysanthemum morifolium cv. ‘Jimba’) in a greenhouse in Changwon, Republic of Korea. In this greenhouse, the disease incidence reached approximately 60% and the presence of Frankliniella occidentalis (Thysanoptera: Thripidae – EPPO A1 List) was observed. Laboratory analysis (electron microscopy, inoculation to indicators, DAS-ELISA, RT-PCR, sequencing) confirmed the presence of Chrysanthemum stem necrosis virus (CSNV – EPPO A2 list) in diseased plants. This is the first time that CSNV is reported from the Republic of Korea, and this virus is considered to be a major threat for the production of chrysanthemum plants which relies on vegetative propagation.
The situation of Chrysanthemum stem necrosis virus in the Republic of Korea can be described as follows: Present, first found in 2013 in one production site in Changwon.
Sources
Yoon JY, Choi GS, Choi SK (2016) First report of Chrysanthemum stem necrosis virus on Chrysanthemum morifolium in Korea. Plant Disease 100. http://dx.doi.org/10.1094/PDIS-06-16-0906-PDN