Peach tree fruit will not ripen
I moved into my house about 3 years ago. Some large peach trees in my back yard. They look to be full grown(they were this full size when I moved in). They are semi-dwarf trees. The fruit on them gets to a certain size each summer, but will get no larger, and will not ripen. what can I do to make these tree's produce fruit? There were 2 trees when I moved in, and now there are 4 trees. They seem to reproduce well, and the trees look strong and sturdy, but none of them will produce any fruit.