I inherited a lovely red flowering dogwood that is ailing. I am looking for some care/treatment advice.
I have included pictures of the leaves. They are showing reddish discolour at the tips and edges, browning at the tips, and the intervein areas are pale green.
I am assuming the tree might be suffering from dogwood anthracnose. I am treating that with a liquid copper spray every 10 days or so and have started removing some of the more severely damaged leaves. Am I on the right track with this?
Any thoughts about the pale intervein problem? The tree is in well drained soil that is also shared by a massive silver maple. A soil test suggested nitrogen and phosphorus depletion so I have been fertilizing with liquid fertilizer (there was a good addition of rich soil a month or so ago.) but no change in the mature leaves. Any suggestion?
