as started again. What can I do to halt further spread? Should I remove all dying growth?
Apparent Dying of Small Branches on My Ornamental Cherry Tree. It Started Last Summer, and in Spite of Flowering This Spring, It H
Certified GKH Gardening Expert
Flowering Cherry are susceptible to disease and pests.
This is likely a fungus disease. Prune out any dead material and dispose of.
You can apply a fungicide.
Here is a link with more information.