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 ...

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 ...

The trunk might be the most neglected part of a tree. Leaves get the most attention, followed by the roots. But a trunk should not be taken for granted as it must be sturdy and healthy for the rest of ...