Question: We have a large 60+ foot mulberry tree in our backyard that is located by our pond. This is the first year I have seen these dark streaks on the bark of the tree. Should I have concerns?
A: As a tree gets older, the woody tissue of the trunk and limbs divides into two zones: heartwood and sapwood. Heartwood cells usually contain tannins or other substances that make it dark colored ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback