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excellent2013

what is these ugly dark spots on my plum tree?

excellent2013
9 years ago

i have this plum tree in my backyard in which we bought this house last year. this is our first time seeing this plum tree blossoming and bearing fruits. it does has fruits, but recently i noticed it has lots of small ugly dark spots on the branches, it's on almost all of the branches, what are these? is my tree dying? what do i have to do to save it?