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 ...

Sap is the 'blood' of a tree, helping to move nutrients from the roots to the limbs. Some sap is not unusual, but excessive amounts may mean trouble. Learn what it means when you notice a lot of sap, ...

Q: I had some lower branches trimmed from my ponderosa pine in December. How long will it take for the sap to quit flowing? A: Sap flowing from a tree wound is part of its defense system . The sap ...

Homeowners may be seeing some lingering effects of last year’s 17-year cicada emergence in smaller branches of trees, but ...

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?

Tea tree oil can help kill bacteria and decrease inflammation, which makes it an ideal home remedy for healing wounds and ...

When the debris is removed from your property, the damage to the remaining trees and shrubs becomes clear. The Aug. 10 derecho sliced through tall canopy trees with 1 foot to 3 feet diameter trunks, ...

Researchers have confirmed what Indigenous Australians have long known: native plants have great healing properties. A study has found that two plants show great potential for healing wounds quickly ...

Ants have been seen healing wounded trees in Panama—behavior that is believed to have never been observed before. When holes were drilled into Cecropia tree trunks, the ants emerged from their homes ...

Do you have an oak tree? You could save its life by putting your chainsaw down and not pruning it right away, according to the Michigan DNR. Oak trees are at high risk for oak wilt infection between ...