Here are some references from UGA CAES on fruit tree management. This one, while geared towards the professional grower, might provide some guidance:

http://www.ent.uga.edu/peach/PeachGuide.pdf

Here is a link that might be useful: Fruit documents

Here is the one for home gardens.

Anytime you want to find UGA publications on gardening (and they have a lot of them), just google for the name of the plant plus UGA CAES and you can usually find what they have. In the case of this document, I used "uga peaches trees home" and it was the first document found.

Here is a link that might be useful: Publication