Some mushrooms invade living host plants and become parasitic in them. In particular, when these mushrooms invade resource trees, they deteriorate them and significantly reduce their value by rotting them and sometimes even killing them.
These mushrooms, which are easily found around us, include Formitella fraxinea, Fomes fomentarius, Phellinus linteus, Armillariamellea, Armillariella tabescens, and Rhizina undulata.
These mushrooms can be divided into ones that invade tree stems and ones that invade roots. Mushrooms found on the stems of trees are species that cause core rotting, and the ones on tree roots cause root rot.
Caused by Rhizina undulata invading coniferous trees such as pine, needle fir, spruce, larch, and hemlock spruce.
Caused by Armillariella invading the roots of coniferous and broad-leaved trees.
Some mushrooms belonging to Polyporus invade roots and make them rotten and cause heartwood decay.