Iris yellow spot virus detected in Lilium (lily)
In 2006, unusual virus symptoms were observed on a seed-propagated cultivar of Lilium x formelongi grown in Israel. Affected plants were stunted, and presented necrotic spots and rings on the leaves. Symptoms were seen on many plants and heavy losses were observed. Serological and molecular tests (DAS-ELISA, RT-PCR, sequencing) revealed the presence of Iris yellow spot virus (Tospovirus, IYSV – EPPO Alert List). It is noted that this outbreak of IYSV in Lilium was associated with large populations of Thrips tabaci (vector of IYSV). This it is the first report of IYSV on Lilium.
Gera A, Siti L, Beckelman Y, Tam Y, Kritzman A, Zeidan M (2008) First report of Iris yellow spot tospovirus (IYSV) in lily and impatiens. Proceedings of the 12th International Symposium on Virus Diseases of Ornamental Plants, Haarlem, NL, 2008-04-20/24, p 51.