EPPO Global Database

EPPO Reporting Service no. 09 - 2005 Num. article: 2005/141

First report of Iris yellow spot tospovirus in Spain

In September 2003, unusual virus-like symptoms were observed on several onion plants (Allium cepa) in commercial fields in Albacete (Castilla-La Mancha), Spain. These symptoms included yellowish diamond-shaped lesions on the leaves and stalks sometimes becoming necrotic, leaf curling, and reduction of bulb size. Severely affected plants eventually died. Laboratory tests (ELISA, PCR) confirmed the presence of Iris yellow spot tospovirus (IYSV - EPPO Alert List). This is the first report of IYSV in Spain. Thrips tabaci (a vector of IYSV) is reported to be present in large populations in the onion-growing areas in Spain.
The situation of Iris yellow spot tospovirus in Spain can be described as follows: Present, found in onion crops near Albacete, Castilla-La Mancha.


Córdoba-Sellés C, Martínez-Priego L, Muñoz-Gómez R, Jordá-Guttiérrez C (2005) Iris yellow spot virus: a new onion disease in Spain.
Plant Disease 89(11), p 1243.