I have rang Botanical gardens in Qld and was told it could be a fungus causing all leaves to be dying on my tree. I have also typed in every known reason on internet and have come to conclusion maybe it’s root rot. It was a very healthy tree which I planted 7 years ago and now is approx 25 feet tall. We have had heaps of rain here over the past 2 months. If it is root rot, is there anything I can do to save it? After looking up all the different types of fungus, I don’t think it’s one of them.
Certified GKH Gardening Expert
There is no cure of root rot.
If you can pull the stems from the crown of the plant this is root rot.