Peach tree fruit not growing
We have a peach tree approx. 15yrs old it has been a wonderful producer. BUT this year it has fruit about the size of a quarter and they are NOT growing. Prior years it drops fruit but the rest become wonderful fruit. None of the fruit dropped this year and none is developing? The tree foliage is growing and looks better than ever. I did fertilize in March. What would make the fruit STOP growing?
Thanks for any help you can give