RUDN Journal of Ecology and Life SafetyRUDN Journal of Ecology and Life Safety2313-23102408-8919Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)12286Value of the quality of locality of the birch in ecology inonotus obliquus (pers.) pil.BalandaykinM EUlyanovsk State University131119892007@rambler.ruUlyanovsk State University150320123101712092016Copyright © 2012, Balandaykin M.E.2012Specificity influence of yield class Betula pendula Roth. on occurrence degree in plantations of pathological agent Inonotus obliquus (Pers.) Pil. is positioned.Inonotus obliquus (Pers.) Pil.Betula pendula Roth.Inonotus obliquus (Pers.) Pil.Betula pendula Roth.growth classбонитет