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  2. Afield: Have you noticed trees turning brown in central PA ...

    www.aol.com/news/afield-noticed-trees-turning...

    The trees in question are likely black locust — particularly if you are observing entire groups of trees, all turning brown. The good news is that although it is not pretty, it is very unlikely ...

  3. Cronartium ribicola - Wikipedia

    en.wikipedia.org/wiki/Cronartium_ribicola

    Infected trees are often identified by "flagging", when all the needles on a branch turn brown and die. Infections often occur on low branches close to the ground on young trees, so pruning of white pine can also be effective in multiple ways, as it improves the quality of timber by creating more knot-free timber, and reduces the likelihood of ...

  4. Wood-decay fungus - Wikipedia

    en.wikipedia.org/wiki/Wood-decay_fungus

    Some species of wood-decay fungi attack dead wood, such as brown rot, and some, such as Armillaria (honey fungus), are parasitic and colonize living trees. Excessive moisture above the fibre saturation point in wood is required for fungal colonization and proliferation. [1]

  5. Heart rot - Wikipedia

    en.wikipedia.org/wiki/Heart_rot

    The bracket fungus Fistulina hepatica is one of many that cause heart rot.. Heart rot is caused by fungi entering the trunk of the tree through wounds in the bark.These wounds are areas of the tree where bare wood is exposed and usually, a result of improper pruning, fire damage, dead branches, insects, or even animal damage.

  6. Coarse woody debris - Wikipedia

    en.wikipedia.org/wiki/Coarse_woody_debris

    Coarse woody debris (CWD) or coarse woody habitat (CWH) refers to fallen dead trees and the remains of large branches on the ground in forests [1] and in rivers or wetlands. [2] A dead standing tree – known as a snag – provides many of the same functions as coarse woody debris. The minimum size required for woody debris to be defined as ...

  7. Aspen trunk rot - Wikipedia

    en.wikipedia.org/wiki/Aspen_trunk_rot

    Aspen trunk rot is a fungal disease that causes stem decay heart rot of living aspen trees. The pathogen that causes this disease is the fungus Phellinus tremulae.Most of the symptoms of this disease are internal, with the only external signs of a diseased aspen being fruiting bodies called conks.

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