here is a link that might help.
Jd Gonzalez wrote:looks like leaf blackspot, it is a fungus. you have had better luck than me in growing pawpaws from seed .
Thanks so much! So glad I posted now, before it's a huge problem. I'll try a neem mix. I had 2 seedlings come up from the seeds I got through the pawpaw project last year, but only two sprouted. I dug one up by mistake, and it did NOT like my manhandling. Maybe you can check out the project, if you're interested - you can get the seeds for a small donation worldwide.
Karen Layne wrote:I have a pawpaw tree in my yard (20+ ft tall). I don't like it. The fruit is what I call "sickly sweet" and the pawpaws have got be picked up before we mow or it's a sticky mess. There are always volunteer plants everywhere ( which I pull and compost). I don't know if there are other species besides the kind I have but the pictures you posted look nothing like my pawpaw leaves.
Huh, I wonder what your tree leaves look like. I got my seeds through the pawpaw project, so I'd like to think I got the real deal. I might plant it by the chicken coop to deal with fruit spoilage. Hopefully they taste better than yours, I don't like things that are too sweet, although my partner has coined 'there is no such thing as too much sugar'