Burnt-Crust Root and Butt Decay and Canker

摘要

Kretzschmaria deusta is not exactly a household name. But it is the scientific name of one of the most common and important root and butt decay pathogens in urban trees. The so-called burnt-crust fungus may not be recognized by arborists because it isnot a conk, mushroom or bracket like most other decay fungi (Photograph 1). It also is easily overlooked because ofits variable appearance and reduced (Photograph 2).