First report of Cucurbit yellow stunting disorder crinivirus in Portugal
During autumn 1998, symptoms of chlorotic mottling, yellowing and stunting were observed on cucumbers (Cucumis sativus) in an experimental plot in Algarve, Portugal. First symptoms appeared 3 weeks after planting and were associated with heavy infestation by Bemisia tabaci (EPPO A2 quarantine pest). Plants which showed early infection produced few and small fruits. Molecular studies revealed the presence of Cucurbit yellow stunting disorder crinivirus (EPPO Alert List). This virus was also detected in samples of cucumber, melon (Cucumis melo) and watermelon (Citrullus lanatus) collected during summer 1999 in commercial greenhouses. This is the first report of Cucurbit yellow stunting disorder crinivirus in Portugal. The situation of Cucurbit yellow stunting disorder crinivirus in Portugal can be described as follows: Present: found only in a few areas.
Sources
Louro, D.; Vicente, M.; Vaira, A.M.; Accotto, G.P.; Nolasco, G. (2000) Cucurbit yellow stunting disorder (Genus Crinivirus) associated with the yellowing disease of cucurbit crops in Portugal.
Plant Disease, 84(10), p 1156.