bark ringing - Gardening
Bark Issues on Trunk (addresses deer damage, too) According to Michigan State University, the bark on a crab apple tree can peel due to several reasons, including normal aging, winter injury, fire blight, and pest infestation. Removing the surface bark will reveal discolored, brown tissue, normally separated from healthy bark by a distinct, black zone line, although this line can be somewhat indistinct during periods of active pathogen expansion, typically in the spring. This zone line represents the active front of the infection.
Understanding the Context
Our 2 Japanese maple trees have what appears to be freshly damaged bark. Wondering the cause and if we should take any action. Thank you! “Split bark, or vertical cracks along the lower tree stem of young trees, most commonly occurs on thin-barked trees like plum trees.
Image Gallery
Key Insights
Cracks can become long-term open wounds that are more susceptible to wood-boring insects, fungal diseases and wood decay. Sunscald occurs when the cambium cells under the bark heat up during sunny winter day. Young trees with thin bark are more susceptible to sunscald. Damage from sunscald leaves bark with a sunken appearance where cells have died. Red maples along city streets often have small, oval-shaped dead patches on the trunk that eventually callus over as the tree continues to grow.
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Sweetgum naturally has "winged" extensions/projections (sometimes called "corky ridges") growing off of the bark, and tree bark often changes in texture as the tree ages. Since trees are genetically unique, each one could have different degrees of bark outgrowths, in addition to factors like branch/trunk age. You can view some examples in the image gallery on Maryland Biodiversity Project's ... This Tulip poplar behind my house has developed a shredded bark appearance with lighter wood showing through the bark. What is happening? The tree is a highway for nuthatches and woodpeckers coming to the feeder off my second floor deck and they frequently carry seeds to the trunk, I suspect to attract insects that they will eat later.
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