Did he thin them? Peaches can lose up to 90% of the fruit that sets and still have what is considered a full crop. If he still has time to thin then thin to 6" between fruit, that means alot of fruit on the ground.Seems like a waste but it's not. You'll get a bushel of 40-5" fruit if you thin or a bushel of 100-2" fuit if you don't. They may not have enough time to ripen before frost in your area.