EPPO Global Database

Iris yellow spot virus(IYSV00)

Distribution details in Italy

Current pest situation evaluated by EPPO on the basis of information dated 2013: Present, restricted distribution
First recorded in: 2007
From CABI Disease map 1011 (2014): Present, restricted distribution
First found in Emilia-Romagna, then in Piemonte, Veneto, Marche, Calabria, Campania.

EPPO Reporting Service (2008/163) : first confirmed record in summer 2007 on onion crops in Emilia-Romagna (provinces of Bologna, Ravenna and Forli-Cesena). An earlier record had been made in Veneto in one plant of Portulaca (Cosmi et al., 2003) but IYSV has not been reported again from that region.

From PPO of Emilia-Romagna (2009-01): in 2008,4 onion fields were found infected by IYSV in Emilia-Romagna. Disease incidence was very low in 3 fields (1-3%) and reached 40-50% in 1 field. Thrips populations were lower than in 2007. Economic impact did not appear significant.

EPPO Reporting Service (2011/017) : detected again in Veneto on 2 onion crops (Allium cepa), no crop loss reported.

EPPO Reporting Service (2011/088) : detected in Piemonte.

According to Zicca et al. (2012), Manglli et al. (2012), Minutolo et al. (2013): also in Veneto, Calabria and Campania.
* Cosmi T, Marchesini E, Martini G (2003) [Presence and spread of Tospovirus and thrip vectors in Veneto.] Informatore Agrario 59(20), 69-72 (abst.).

* Manglli A, Zicca S, Tiberini A, Albanese G, Tomassoli L (2012) Iris yellow spot virus on onion crops in Calabria, Southern Italy. Journal of Plant Pathology 94(suppl.), S.4.98.
------- Calabria.

* NPPO of Italy (2010-02, 2010-09).

* Minutolo M, Sorrentino R, Griffo R, Scala F, Alioto D (2013) Occurrence of Iris yellow spot virus on onion in Campania. Journal of Plant Pathology 95(4S), S4.53.
------- Campania.

* Regional Plant Protection Service, Emilia-Romagna (2008-08, 2009-01).

* Tomassoli L, Tiberini A, Masenga V, Vicchi V, Turina M (2009) Characterization of Iris yellow spot virus isolates from onion crops in Northern Italy. Journal of Plant Pathology 91(3), 733-739.
----- IYSV detected in 4 samples from onion crops in Emilia-Romagna.

* Zicca S, Ciuffo M, Manglli A, Turina M, Tomassoli L (2012) Iris yellow spot virus: an increasing problem for Italian onion crops. Journal of Plant Pathology 94(suppl.), S.4.84.
------- Surveys carried out in 2012 confirmed the presence of IYSV in Piemonte, Veneto and Calabria.
Situation in neighbouring countries
Country State Status
Austria Present, restricted distribution view...
France Present, few occurrences view...
Slovenia Present, few occurrences view...