Need late varieties here or something. I’ve got a peach tree that has had the blossoms freeze and drop off 6 years out of 8. Japanese beetles got the fruit one year. Only got a few peaches in the “good year”. Ten times better than the store but ...
Your peaches are already planted, but for others that might read this, avoid planting your fruit trees on a south slope where they will get a lot of early year sunlight and bark heating and sap rise which leads to early blossom.
If you have a choice plant them on the north slope of a hill so they get less sunlight until later in spring and are less susceptible to a late frost. Alternatively plant them on the north side of an implement shed or barn if you have one maybe.
I do not have a hillside with a north slope. I do use a trunk protector that is supposed to keep the trunk cool and prevent splitting. People paint fruit tree trunks white to try and keep them from heating and splitting, and perhaps that would also prevent early blossom. I have never care for how this looked. It seemed "Old World". I might try it this year after reading this article: (If you have trees this is worth reading. It also prevents rodent and rabbit girdling. )
Painting-tree-trunks-protects-against-rodents-borers "
"Painting fruit tree trunks with white latex paint can prevent the bark from splitting and cracking off. Splitting can happen when the tree is exposed to freezing evening temperatures, followed by a daytime thawing. The painted white trunk will help reflect sunlight during the daytime hours and keep the tree warmer at night, according to a University of Missouri Extension website."
They have a formula for white latex paint and drywall compound. If used it should be applied soon. I suppose you will still need to spray the unpainted part of the tree with dormant oil. (Also s/b pretty soon! Next week might be good! )
Japanese beetles; Someone else suggested using mosquito netting during the annual japanese beetle invasion. (They love plum tree leaves....) My trees are semi dwarf so It might work. Walmart sells some for about $16 a piece so I might get a couple for this year.