First report of Cucurbit yellow stunting disorder virus in Italy
The NPPO of Italy recently informed the EPPO Secretariat of the first record of Cucurbit yellow stunting disorder virus (Crinivirus, CYSDV – EPPO A2 List) in Sardegna (IT) on melon (Cucumis melo) and courgette (Cucurbita pepo) crops. The identity of the virus was confirmed in December 2016 by molecular methods. The following two outbreaks were detected in Sardegna:
- CYSDV was found in 1 farm located in the municipality of Uta (Cagliari province) in field-grown courgettes (cv. ‘Ardendo’) and melons (cvs. ‘Hispano’ and ‘Hidalgo’).
- CYSDV was found in 1 farm located in the municipality of Serramanna (Sud province) in field grown melons (cv. ‘Salzillo’).
It is noted that no severe symptoms were observed and that only a small number of plants displayed symptoms (interveinal yellowing). However, as the vector Bemisia tabaci occurs in this area, the disease might spread. The origin of these outbreaks remains unknown. Phytosanitary measures are under consideration. Surveys in glasshouse and field crops will be conducted in 2017.
The pest status of Cucurbit yellow stunting disorder virus in Italy is officially declared as:
Present, only in some parts of the member state concerned (2 municipalities in Sardegna region).
NPPO of Italy (2017-01).