The Sap that is oozing from my tree is amber in color
What I have read about my weeping flowering cherry tree is that it is canker. What is it and how do I treat it?
Certified GKH Gardening Expert
You can try treating the area with a fungicide. The best offense for canker is a good defense - this means making sure the tree is as healthy as possible. Make sure the tree is getting enough water and nutrients and is pest free. A healthy tree can fight of the infection better. This article will also help: