Dwarf peach tree fungus?

[Seven]

Hi everyone!

I have a dwarf crimson bonfire peach tree and I noticed some of the leaves have this issue (photo).
Do you know what kind of disease this is ?

Thank you for your help

 

[cpp gardener]

It might be damage from insects during he summer or a mild leafspot infection. Since its going to go dormant in the next month or so you don't need to do anything right now. Spray with copper in the late winter to prevent most diseases next year.