When mushrooms or conks, also called a bract or shelf, grow on tree bark, it is usually a sign that the tree is infected with a rot-inducing pathogen.

When mushrooms or conks, also called a bract or shelf, grow on tree bark, it is usually a sign that the tree is infected with a rot-inducing pathogen. Stock Photo
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NNStock / Alamy Stock Photo

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2CCC7NB

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68.8 MB (2.2 MB Compressed download)

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6016 x 4000 px | 50.9 x 33.9 cm | 20.1 x 13.3 inches | 300dpi

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When mushrooms or conks, also called a bract or shelf,  grow on tree bark, it is usually a sign that the tree is infected with a rot-inducing pathogen. While not all mushrooms are harmful to trees, many are. They cause heart decay, which causes healthy trees to begin to rot at the heart of the trunk.