To the issue of plantation state and pathogenic biota in the arboretum of the forest Institute in the Siberian branch of the Russian Academy of Sciences

The results of the plantation detailed phytopathologic survey in the arboretum of the Forest institute named after V.N. Sykachev in the Siberian branch of the Russian academy of sciences are given in the article. The sanitary condition of the woody plant 92 species and forms of different geographic origin is determined. The pathogenic plant consorts causing leaf diseases, necrosis-cancerous lesions are revealed. The injuriousness of diseases is given.