First report of Mycosphaerella dearnessii on Pinus nigra var. nigra in Austria

Summary Mycosphaerella dearnessii, the causal agent of brown-spot needle blight (BSNB), has been known to occur in Austria since 1996. In 2011, the disease was for the first time confirmed on Austrian pine (Pinus nigra var. nigra) in this country. As previous records are doubtful, this may also be the first definite report of M. dearnessii on P. nigra in entire Europe.