Japanese Maple Trees
Q.

Our dwarf Japanese red vine maple was full-grown when we moved here 13 years ago. The age of the tree is unknown to us. It has a

Zone Marysville, WA 98271 | Anonymous added on June 28, 2019 | Answered

10 inch, 1/2 inch deep, break in the bark of the main stem. What should I do? Is the tree healthy? How much longer will it live?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Answered on June 28, 2019

The possibilities are a superficial bark expansion crack (but it sounds like it's too deep for that). The most likely is a water deficit that allows drying of tissues, Or it could be a torsion fracture if the stem is unsupported and has twisted in wind event. Or it can be related to a nutrient deficiency, particularly Calcium, without adequate availability impairs good tissue and cell wall development and wood strength.

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