First record of Xanthomonas arboricola pv. corylina in Iran
In Iran, a severe disease of hazelnut (Corylus avellana) was observed in 2004 in several orchards of the Gilan province (north-west, along the Caspian Sea). Water-soaked spots were observed on leaves which then desiccated. Shoots also presented dark-brown to black necrotic lesions. Analysis of extracts from symptomatic tissues revealed the presence of Xanthomonas arboricola pv. corylina (EPPO A2 list). This pathogen could then be inoculated to healthy hazelnut plants and re-isolated from lesions which appeared on these inoculated plants. This is the first report of X. arboricola pv. corylina in Iran.
The situation of Xanthomonas arboricola pv. corylina in Iran can be described as follows: Present, first observed in 2004, in the Gilan province (north-west).
Sources
Kazempour MN, Ali B, Elahinia SA (2006) First report of bacterial blight of hazelnut caused by Xanthomonas arboricola pv. corylina in Iran. Journal of Plant Pathology 88(3), p 341.