Formerly known as Ceratocystis fagacearum.

Part of 🍄︎ fungus / mushroom  kingdom Fungi.

A 🍄︎⚕︎ fungal disease affecting all species of oak  genus Quercus.   Invasive > learn+quiz Invasive > 🇨🇦 🇺🇸 Canada+USA Invasive > report it! Invasive > Michigan Invasive > Michigan (state site)

In areas where the disease is or may be present :

  • do not move oak firewood (ever), and
  • do not prune oaks February through June (Texas) or April 15 through July 15 (🇺🇸 USA Midwest and East).

Uses by native peoples
(Ethnobotany database)

Oak Wilt distribution, prevention, identification, and control.  Adobe Acrobat Reader file Info from the Tree Doctor at MSU (archived) "Oak Wilt Part 2:  Horror Stories" by Plant Doctor at MSU.  Adobe Acrobat Reader file

Learn more about oak wilt disease (OWD) Bretziella fagacearum

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🏠︎ 🍄︎ fungus / mushroom  kingdom Fungi

oak branches  genus Quercus ◼︎ white oak  Quercus alba ◼︎ scarlet oak  Quercus coccinea northern pin oak  Quercus ellipsoidalis ◼︎ southern red oak  Quercus falcata scrub oak  Quercus ilicifolia shingle oak  Quercus imbricaria bur oak  Quercus macrocarpa ◼︎ blackjack oak  Quercus marilandica ♒︎ water oak  Quercus nigra pin oak  Quercus palustris willow oak  Quercus phellos ◼︎ northern red oak  Quercus rubra ◼︎ black oak  Quercus velutina southern live oak  Quercus virginiana