My ornamental cherry tree, a graft, has many diseased leaves which are gnarled and have bright red blisters. Astonishingly, I cannot find a picture of this affliction anywhere on the web. What does it suffer from and can it be cured? For 3 years now I've been removing the afflicted leaves, but it keeps reappearing. Any advice would be much appreciated.
- 31 Jul, 2012