The bark of a tree is its own protection against the weather. While we shrug on a coat when it’s wet or cold, a tree will grow its own to insulate itself, keeping moisture out when it’s raining and in ...

The trees exchange carbon dioxide and oxygen with the atmosphere through little “mouths” in their leaves and tiny “windows” in their bark.

Like the trees that produce them ... Some gnarled old bristlecones have only a thin strip of living bark, which sustains a single living branch and its needles. In a sense, these ancients have ...

We definitely have peach tree borers in our nectarine tree. The trunk is pretty much encircled by the sap oozing just above ...

Q: I have a bur oak tree in our backyard that ... A: Good news — the ridges on the twigs and branches are normal, and the interesting corky-looking bark becomes an attractive feature of ...