Could someone please tell me what is wrong with my tree. Something is eating the leaves. There are orange spots on the top and bottom of the leaves. The ones underneath are slightly raised. There are lots of tiny little spiders on the tree. Also ants are going to the very end of the branches where some new leaves are and spending a lot of time underneath the leaves. Quite a lot of leaves are shrivelling up and dying. Also, I have noticed a split at the base of the trunk. Thank you.