this thread may be of interest to some...
over the years I've collected many pitangatubas, from about 7-8 different sources...
I noticed that some of the oldest trees, (which must have been over 10yr old when I got them) have issues with setting fruit.
after years of waiting for them to set fruits, I finally lost my patience...
last year I planted them out in my yard...and this year topworked them with some of the best varieties I have found...putting two varieties on each tree.
here are some pics of the two trees I topworked....I will post some updates as they progress...once they are setting fruits I'll be really happy...