The hosts and geographic range of Dothistroma needle blight in Slovakia

The occurrence and distribution of Dothistroma needle blight (DNB) were studied in 2014–2017 around Slovakia. A total of 84 localities, both native and planted, were investigated, and the presence of DNB was confirmed in 73 of them. In all positive locations, symptoms typical of DNB were observed and the Dothistroma species was confirmed using species‐specific primers either from fungal cultures or directly from needles. Both Dothistroma species—D. septosporum and D. pini—were identified. Both species occurred together in 29 locations, only D. septosporum in 42 and only D. pini in two locations. The host range of D. septosporum included 10 pine species and two spruce species. The host range of D. pini comprised the same number of pine hosts but only one spruce species. Five pine hosts, P. aristata, P. coulteri, P. densiflora, P. jeffreyi, P. × schwerinii, and one spruce host P. abies are new hosts species of D. pini. P. densiflora and Picea pungens have earlier been reported to be susceptible for DNB. In this study, D. septosporum was found from both tree species.

[1]  L. Jankovský,et al.  The host spectrum of Dothistroma needle blight Mycosphaerella pini E. Rostrup - new hosts of Dothistroma needle blight observed in the Czech Republic , 2018 .

[2]  L. Jankovský,et al.  Dothistroma needle blight Mycosphaerella pini E. Rostrup, a new quarantine pathogen of pines in the CR , 2018 .

[3]  R. Ostrovský,et al.  Distribution and characterization of Dothistroma needle blight pathogens on Pinus mugo in Slovakia , 2017, European Journal of Plant Pathology.

[4]  M. Wingfield,et al.  Global geographic distribution and host range of Dothistroma species: a comprehensive review , 2016 .

[5]  M. Vasconcelos,et al.  Dothistroma needle blight, weather and possible climatic triggers for the disease's recent emergence. , 2016 .

[6]  M. Mullett,et al.  The distribution of Dothistroma septosporum and its mating types in Poland , 2016 .

[7]  M. Mullett,et al.  Infection of Cedrus species by Dothistroma septosporum , 2016 .

[8]  M. Wingfield,et al.  Four New Host and Three New State Records of Dothistroma Needle Blight Caused by Dothistroma pini in the United States. , 2014, Plant disease.

[9]  M. Wingfield,et al.  Population structure and diversity of an invasive pine needle pathogen reflects anthropogenic activity , 2014, Ecology and evolution.

[10]  M. Wingfield,et al.  Needle blight of pine caused by two species of Dothistroma in Hungary , 2011 .

[11]  B. Marçais,et al.  Development, comparison, and validation of real-time and conventional PCR tools for the detection of the fungal pathogens causing brown spot and red band needle blights of pine. , 2010, Phytopathology.

[12]  M. Wingfield,et al.  New host and country records of the Dothistroma needle blight pathogens from Europe and Asia , 2008 .

[13]  M. Wingfield,et al.  Characterization and distribution of mating type genes in the dothistroma needle blight pathogens. , 2007, Phytopathology.

[14]  A. Kunca,et al.  Invasive and quarantine pests in forests in Slovakia , 2006 .

[15]  M. Wingfield,et al.  Multigene phylogenies reveal that red band needle blight of Pinus is caused by two distinct species of Dothistroma, D. septosporum and D. pini , 2004 .