My Son planted a lemon tree in his yard about 10 years ago.
Somewhere along the way of becoming a big tree it now appears to be producing lemons on the lower part of the tree and big oranges on the upper part. Problem is the oranges are nasty. They are big and orange with a deformed looking skin. The inside is white and very sour.
It’s such a big healthy tree we hate to do away with it but the fruit it produces is worthless.
Within about 50 ft from this tree is another much smaller orange tree that produces very good oranges. Don’t know if that had any significant??
Any suggestions on fixing the big nasty orange tree???