Yeah its really hot and dry at the moment. I have moved the tree to a location where it now only get morning sun and no afternoon sun. There is some new growth on the tree that doesn't seem to be infected. I will keep an eye on the tree and report back to you guys. I really hope it is stress and not a disease.
im not sure but i think it coust by chemical reaction. that black spot my be a rezult of acid mist from a herbiside or it was urinate, you kn0w pee...sorry for my english and spelling, im just newbei and an asian.
