How wide are the flowers? Looks like hybrid almond (Prunus X persicoides) in first shot. This is half almond and have peach, so it resembles peach but also has almond characteristics, including the production of almonds (instead of peaches).

The main general issues with peaches, almonds and their hybrid is pest and disease control. This varies regionally. Cooperative Extension usually has management information on anything that might be grown for food or profit in a particular area.

Get rid those fire ant first photo 5 they feed on peaches. Cut all low growth off thin top kill grass and fertlize peaches be small if don't. Peach trees grow to much so it prune all time every year prune for low peach set and tree structure all whips are to small to feed peaches on them trees. Whips need to be large because this year they grow whips that bear fruit next year.

Hybrid peach/almond? I never heard of such a thing. I hope not, I don't like almonds. Growing almonds would also be very unusual for around here, whereas everyone puts in peaches. I would say the blooms are about 1 1/4" across.

I have lots of fire ants, so I already have some fire ant killer. I don't like using chemicals, but other than dumping gasoline on them (worse!) there's not much else to be done. I haven't tried it yet to see how effective it is; I am waiting for a calm day when I have some free time.

Now that it's blooming, isn't it too late to prune?