The larval host of Zebra Swallowtail (Protographium marcellus) is any of the eight species of the genus PawPaw (Asimina). I’m in the process of replacing three PawPaw trees that I recently lost. An important quest for me. Exquisite Zebra Swallowtails depend entirely on PawPaw trees for their very existence. No PawPaw trees, no Zebra Swallowtails.…