Tree has what looks like sap at a point low on the trunk and one higher up. It looks healthy, and is 7 yrs old. Anything to worry about? Any actions to take? Thanks.
Weeping Cherry Tree
Certified GKH Gardening Expert
Is it soot-like in nature? If so, this is sooty mold fungus, usually brought about by insects, like aphids. you can treat the tree with neem oil, which will take care of whatever pest may be attacking the tree as well as the fungus. Here is more information: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm