How do you kill fungus on a peach tree?

To kill fungus on a peach tree, first, remove and destroy any infected leaves or fruit to prevent the spread of spores. Apply a fungicide specifically designed for fruit trees, following the manufacturer's instructions for dosage and timing. Additionally, ensure proper air circulation around the tree by pruning overcrowded branches and maintaining good hygiene in the orchard. Regularly monitor the tree for signs of disease and treat promptly to minimize damage.