Just an FYI for those of us in North America...there was a guy selling Soursop trees at the USF Plant Festival a few years back. He claimed they were a host plant for the Zebra Swallowtail, which uses the Pawpaw (Asimina triloba in most of their range). I don't remember which exact species of Soursop he was selling, but they are in the same family (Annonaceae) as Pawpaws. So if anyone in the Eastern U.S. is growing Soursop, I would be interested to know if you ever get caterpillars on it. I know sometimes caterpillars will accept different foods in captivity, but I had a hard time believing they would choose this in the wild when given the option of their native host plant.
David, I really think you're living in the wrong zone!
