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in Problem solving
It sounds like bacterial canker. Full description and treatment options here.
Oh no - I've noticed holes in the leaves of my young cherry tree too. Been out to have a look at the trunk but can't see any oozing or dead patches. Could there be any other reasons for holes in the leaves?
It's the most common cause, but it's one of the earliest symptoms, so if you give your tree a couple of sprays as described in the linked article, you should be able to stop it progressing.
Hi, I know this is an old post but hoping someone will reply.
I planted and Dwarf Stella a year ago and I have noticed the same kind of holes in the leaves described above. Having done further research it is definitely bacterial canker.
The advice given for the use of Copper-based fungicides is to start treating in August. I am concerned that this may be too late, the tree is very young and probably 90% of the leaves are affected.
Can I treat now in May?
Any help would be much appreciated.