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Probable Canker Rot Fungi in Valley Oak

JimFungiAugust 3, 20180 Likes

Probable Canker Rot Fungi in Valley Oak

This valley oak, in the Chinese Camp area, is showing signs of a possible canker rot infection. The bark is bursting in numerous locations on the main bole. Overall, the tree looks healthy, with new leaf growth, and fullness in foliage. The tree has extensive sapsucker holes. A small swimming pool was constructed nearby.

2 August 2018.  Thanks to Dr. Ted Swiecki of phytosphere.com for help with the ID.

Dr. Swiecki states “In canker rots, the decay column extends out to the cambium in some places, causing a localized canker that can callus over, especially if the tree is otherwise vigorous.  ”

 

 

 

 

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Jim

Opatroides punctulatus, a new invasive insect in Tuolumne and Calaveras Counties

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