A reader asked the following questions about trees. No. 1: When hiking, I often see what appear to be several trees growing from a central trunk. What causes this? No. 2: At a local park an oak tree ...

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 ...

With trees, as with elephants and in swimming, trunks are important. They’re part of trees’ beauty, strength, majesty, and mystique. We have things to discuss. Like people, trunks come in all shapes ...

Q: I recently noticed a black, tar-like patch on my tree trunk, though it’s not tacky like actual tar. Are these insect eggs? Dried sap? Do I try to scrape it off? The tree has lichen but I don’t ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › While bright orange or red tree markings might mean a tree is destined for removal, ...

Q: My dad helped me plant a couple of young apple trees in my backyard last weekend and so far, so good. After we finished I said the only thing I had left to do was paint the trunks white. He looked ...

Q: Mushrooms suddenly appeared on my tree’s trunk. How can I treat them to protect the tree? A: Unfortunately, you can’t treat mushrooms growing out of wood, and the fungal growth that produced them ...