Q: I heard that you shouldn’t use wound sealer when pruning your trees — that it does more harm than good. Is this true? A: Yes, it’s true. When pruning your trees, you should not use any sealer on ...

Q: I have a Desert Museum palo verde that was damaged during a windstorm. One of the branches blew off and damaged the trunk. It is an eyesore. Should I replace it? A: I would let the tree heal on its ...

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?

During the period between April 15 and July 15, beetles actively carry spores of fungus from tree to tree, meaning oak trees are at high risk for infection with oak wilt. Oak trees with wounds in ...

The Michigan Department of Natural Resources is urging people to pause any pruning of oak trees to help stop the spread of a deadly tree disease. The risk of oak wilt, an invasive fungal disease that ...