I have an old Dogwood tree that has a bit of cancer where a limb had been
pruned off sometime back and now has developed into a "hollow" entering the
main trunk of tree. What would be acceptable to use to fill this area before
it becomes deadly to the tree? My granddad use to use cement ( as I
remember) to repair such defects, but I always thought that probably not
the best thing to do........ I think a lot of his trees died!!
Suggestions? Thanks