In Shreveport and Northwest Louisiana, white fungus on tree trunks is primarily caused by a disease known as Hypoxylon canker.
This fungal infection is typically triggered by periods of intense tree stress, such as:
### How to Identify It The disease is characterized by the tree shedding patches of its bark, which reveals a crusty white or grayish fungal surface (spore mats) on the trunk. As the infection progresses, these fungal fruiting bodies may change in appearance, becoming more prominent as the tree’s structural integrity is compromised.
### Urgency and Action The urgency for Hypoxylon canker is rated as high, as the decline is often fatal if left untreated. If you notice bark shedding and a white fungal layer on your oaks:
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