My peach tree bears fruit that stays green but is ripe inside. They have black spots. The ground looks wet around the tree and and we live in mid Florida. Could it have an underground stream too near it?
Peaches That Stay Green but Are Ripe Inside
This article may be of help:
And I also suggest you contact your local extension office (found under gov't in the phone book) they should be able to advise you on your possible stream problem and help come up with some solutions to your problems.