problem with lace maple

Question

I have a lace maple in a container on which some of the leaves are drying and seem to be dying. The trunk is darkening on the affected areas but I don’t see any signs of pests. I live in Seattle but am not sure of my zone. I would appreciate any help you can give me.

Answer 1

It sounds like sooty mold.
Here is a link with more information.

https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
https://www.gardeningknowhow.com/ornamental/trees/japanese-maple/japanese-maple-problems.htm