Q. I just planted a fruit tree and was told by a friend that I should paint the trunk with white paint. I really don’t like the idea of a tree painted with white paint in my front yard. Is it really ...

What shape is a tree? For most people, it’s like a lollipop or a feather duster: a single trunk topped by a green bunch of branches and leaves. “Not all trees are like that,” said Sharon Yiesla, plant ...

Some of the wonders of modern medicine are technologies that enable doctors to look inside us without surgery. Now, the same principles are being applied to trees, which may end up benefiting some of ...