Hi Karyn,

Persimmon does drops fruits if too much nitrogen fertilizer. Lucky Pittman has a big persimmon orchard and he recommended no fertilizer at all on persimmon tree.

Tony

I don't fertilize it. I did ammend the soil prior to planting the tree because we have hard red clay but I don't think that would make a difference, especially after so many years. Anything else you can think of that would cause the fruit to drop?

I've read that irregular watering can cause fruit drop. So a dry spell followed by a lot of rain might do it.

Alex

My take on persimmon is,do not fertalize these tree,s because they have a taproot,that get all the stuff they need.
If you see some wilting you can spray a fungacide that is all. The only benefit is a foliar spray of mangenese, make sure it does not contain nitrogen. Make sure you do not see excessive growth. The more you leave them alone the better they like it.