Ah yes, the "need to spray". Better living through chemistry and more profits for the chemical industry.
Healthy fruit trees that live on healthy soil shouldn't need a weekly fix of fungicide. The
permaculture solution for this "problem" is to use
compost tea to make sure that there is a healthy microbial community on the leaves, blossoms, and new fruit and there isn't an opportunity for pathogenic fungal spores to take advantage of.
There is also the matter of the weather. Dry weather after flowering is much less conducive to the spread of fungal diseases than continuous wet weather. I would encourage you to try peaches the non-chemical way, just get out after every rain and reapply some compost tea or neem oil to stay ahead of any potential fungus issues.