Q.peach tree spray
What do you recommend for spraying peach trees to keep the peaches from rotting?
Peach trees should be fertilized twice a year to help promote peach production.
Here is a link with a great article.
https://www.gardeningknowhow.com/edible/fruits/peach/fertilizing-peach-trees.htm
Brown Rot is a very common problem with some varieties of peach trees. Preventative measures is your best defense against the disease.
Here is another link with more information about dealing with the issue.
https://www.gardeningknowhow.com/edible/fruits/peach/fertilizing-peach-trees.htm