John, I love Apopka! My orchid buddies and I make orchid runs up there two or three times a year.
Madeleine, I may be able to help you with your grapefruit tree problem but will need you to expand on "scabby".
One of my favorite fruits is mangosteen which I enjoyed while living in Indomesia. I find it very hard to find here and almost impossible to grow.
Jim