First report of Erysiphe corylacearum in Spain
Native to East Asia, Erysiphe corylacearum is a new powdery mildew of hazelnuts (Corylus spp.) which was first observed in Turkey in 2013 and has since rapidly extended its distribution range in the Middle East, the Caucasus, as well as in Eastern and Central Europe (EPPO RS 2021/042, RS 2021/049). The fungus was detected in Spain in April 2021 in two commercial hazelnut (Corylus avellana) orchards located in the municipality of La Selva del Camp (province of Tarragona, Cataluña). Both the leaves and the nuts were damaged.
Sources
Mazzaglia A, Drais MI, Turco S, Silvestri C, Cristofori V, Aymami A, Casadó V, Rovira M (2021) First report of Erysiphe corylacearum causing powdery mildew on Corylus avellana in Spain. New Disease Reports (early view) https://doi.org/10.1002/ndr2.12035.