oak-root rot

[ ohk-root, -roo t ]
/ ˈoʊkˌrut, -ˌrʊt /

noun Plant Pathology.

a disease of oaks and other trees and woody plants, caused by the fungus Amillariella mellea (oak-root fungus), the fruiting body of which is the honey mushroom, and characterized by rotting roots, girdling of crown, and eventual death of the tree.
Also called shoestring root rot.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019