Peaches, maybe apricot, plum & nectarine.
Brown on the edge, all around the edge of the leaf and works it’s way in the leaf and then crumbles.
Remedy-Dormant oil spray(oil & lime sulphur) mixed together in water and sprayed on the problem, usually do in March, depending on tree the end of April is the absolute latest, before any leaves or buds show.
Harmful bugs live in closed buds. If this problem is detected after buds open use Fruit + for that season for minimal help. Lilac blight has the same symptoms. You an try sulphur but may have better result with copper sulphur. One rememdy someone uses is to soak onion skins in water for several weeks, strain & spray..it has worked for this individual..always water or spray early in the day- Also a well fed plant wil beless susceptable to attacks..don’t forget to LIME the Lilacs-