Presence of chrysanthemum stem necrosis in Belgium
The NPPO of Belgium recently informed the EPPO Secretariat of the presence of chrysanthemum stem necrosis virus (Tospovirus, CSNV – EPPO A1 List) on its territory. In Belgium, CSNV had been found in 2012 and eradicated in 2014 (EPPO RS 2013/028 and RS 2014/128).
As part of the national plant health survey, the presence of CSNV was confirmed on one variety of Chrysanthemum x morifolium cultivated in a greenhouse in the Western part of Belgium (province of West-Vlaanderen) in April 2023. The plants were asymptomatic but tested positive (RT-PCR). Other varieties cultivated in the same greenhouse were inspected and sampled. They were asymptomatic and tested negative. The source of the outbreak is under investigation. Official measures are applied: no plants can be moved or traded out of the greenhouse, and additional inspections and tests are being performed.
The pest status of chrysanthemum stem necrosis in Belgium is officially declared as: Present, only in some parts of the Member State concerned.
Sources
NPPO of Belgium (2023-04).