Cherry Tree Wound

QuestionsCherry Tree Wound
Steven Baxter Staff asked 13 years ago

Tidying up around base of weeping cherry and found this wound. I think this has opened up quickly and over winter. Thing is its about to burst into blossom, and is otherwise on fine form. Its about 10m away from an apple tree that has canker: which I am trying to sort out. What caused this, and any possible treatment?