Q.Peach disease
Can you tell me what is causing these indentations on the skin of my elberta peaches? Treatment?

Certified GKH Gardening Expert
I don't see a picture, but the word "indentation" makes me think it might be peach scab. This article has a list and description of all the major peach diseases. Each also has a link to its own article with photos, so you should be able to match your problem to a named disease:
https://www.gardeningknowhow.com/edible/fruits/peach/common-peach-diseases.htm