Hello, I'm no expert, but i would recommend NOT growing those things from seed, the reason being that to the best of my knowledge these things do not breed "true" to seed. So when you plant an apricot seed a apricot grows, but its not the same genetic individual and might not have tasty fruit (or fruit at all) or might get blight very easily, or there is a small chance it will be as good or better then its parent... but its going to take many years to find out. So, perhaps you should look for rooted cuttings of trees or root divisions of cane fruits. Paw paws are a suckering shrubby tree so they are pretty easy to divide, just watch the tap root.

Whatever it is it must have been a fruit borrer insect first and then fungus or parasite. I am in Toronto Canada and my young frost peach tree was doing this and it literally infected my hole tree. jelly was even coming out everywhere. It usually happened after a hard rainfall. someone gave me a suggestion not sure if it was this site. They said crush garlic tabs and mix with hydrogen peroxide. Here is what I did. I took lots of granulated garlic mixed with hydrogen peroxide and put in a large bowl. Then I placed my hand in the bowl and cupped some of the solution. I guess you could use a turkey baster as well. Placed it on the affected areas. If you are doing this while it is wet and jelly is coming out. The sugesstion was to take out the jelly with your hands before applying the garlic-hydrogen peroxided solution. Anyways I placed the solution on the affected areas and massaged the damaged area to try to get all the solution. The remaining solution I placed around the ground around the tree trunk. So far no more Jelly. You need to do this monthly until you see no more jelly. I believe the garlic-hydrogen peroxide solution killed whatever parisite was growing there. I believe a lot of fresh garlic finely crushed from a blender would possibly work too.

Wow! Thanks for the picture. They need the wet climate of Japan and great age to achieve that size; though obviously they are more commonplace there than anywhere else. AJ Jacobsen gives a cultivated record of only 25' in New Zealand, this one looks at least 30' to me assuming the form stays pyramidal off the edge of the frame.

i dont know which elm ..... but up here in MI .. there are some elms that arent worth the ground they stand on ... even with hundreds of acres ... such as siberian elm ... see link below ... just cuz the old dude planted.. does not mean.. it is a valuable plant ... never forget that ... https://www.google.com/search?q=siberian&ie=utf-8&oe=utf-8#q=siberian+elm you might want to try the tree wizards in the tree forum ... as there are a couple arborists.. i have never seen in this forum ... ken