Peach tree spray against disease, organic.
Peach Tree Spray Against Disease Organic
Certified GKH Gardening Expert
I recommend neem oil. It is organic and very effective as both a pesticide and fungicide. It is often sold as fruit tree spray at stores. Check the label. Here is more information on neem oil: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm