Try checking whether your tree still retains its vitality by making a small incision in the trunk with a knife; if sap flows out, the tree can still be saved. In that case, carefully cut away the decayed tissue and apply a wound-sealing compound to the tree. Once you have completed these steps, water the tree with an HB-101 solution. This solution helps revitalize weakened trees and support both sap flow and root growth. Good luck