Fungal diseases of spotted pines, introduced in Kola peninsula

The five-leaf pine species introduced to the Kola peninsula are exposed to the pathogenic fungi of predominantly local origin. The rotting of seedling s is most dangerous during the first stage of cultivation, while the 15-20 year old trees are suffering from scleroderriosis and cancer. To prevent th ese infections of the five-leaf pines the cultivation sites are to be chose n on a distance from natural forests or the preventional phytosanitaric mea sures in surrounding natural forests must be conducted.