I have this Ischia Black. One side of the tree is growing normally. The other side is very sickly. Earlier, I picked off the lower sick leaves hoping that would help. I also sprayed the tree with fungicide and insecticide. Nothing help.

Wonder whether any of you have encountered similar problem. What cause it? Is there anything that I can do?


Click image for larger version  Name:	IMG_20210725_105742.jpg Views:	0 Size:	544.3 KB ID:	1019034