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Hypoxylon Oak Canker (Biscogniauxia atropunctata) Hypoxylon Oak Canker a.k.a. &quot;Biscogniauxia Dieback&quot; is a white-rot fungus that infects primarily Oak (Quercus sp.) trees, usually following a period of stress like a drought. The fungus will eventually cut off the supply of water and nutrients to the tree by destroying the sapwood (nutrient-conducting tissues).<br />
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Growing on a fallen oak branch in a wooded backyard habitat. Biscogniauxia atropunctata,Geotagged,Hypoxylon Oak Canker,United States,Winter Click/tap to enlarge

Hypoxylon Oak Canker (Biscogniauxia atropunctata)

Hypoxylon Oak Canker a.k.a. "Biscogniauxia Dieback" is a white-rot fungus that infects primarily Oak (Quercus sp.) trees, usually following a period of stress like a drought. The fungus will eventually cut off the supply of water and nutrients to the tree by destroying the sapwood (nutrient-conducting tissues).

Growing on a fallen oak branch in a wooded backyard habitat.

    comments (1)

  1. Who can help with identifying the fungal disease of red oak?
    I will provide photos on request.
    Posted 7 months ago, modified 7 months ago

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A species of fungus within the Xylariaceae family.

Hypoxylon Oak Canker a.k.a. "Biscogniauxia Dieback" is a white-rot fungus that infects primarily Oak (Quercus sp.) trees, usually following a period of stress like a drought. The fungus will eventually cut off the supply of water and nutrients to the tree by destroying the sapwood (nutrient-conducting tissues).

Similar species: Xylariales
Species identified by Flown Kimmerling
View Flown Kimmerling's profile

By Flown Kimmerling

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Uploaded Feb 25, 2019. Captured Feb 23, 2019 05:02 in 100 W Main St, Centre, AL 35960, USA.
  • Canon EOS 6D Mark II
  • f/2.8
  • 1/197s
  • ISO320
  • 100mm