I have a Fuyu persimmon tree that has been bearing great crops ever since I planted it several years ago. This summer, all the fruit is falling off. I researched it: Non-pollinated (parthenocarpic) fruits have a high tendency to drop green.
Years ago, I grafted some Chocolate persimmon on an adjacent tree. Over the years, it bloomed profusely, but never any fruit. That tree was not healthy, and is now dying. All the Chocolate grafts are gone. I now suspect the Chocolate persimmon was providing pollen for my Fuyu.
If you have a Chocolate persimmon tree, I would be glad to buy twigs from you, to bud graft on my Fuyu. If I do it ASAP right now, the buds may bloom out next spring, and save next year's crop. I would be glad to pay for them, including shipping. Or if you prefer exchange, I have all sorts of garden and orchard things.
Rick, I have chocolate. Its probably my least vigorous persimmon, so not a ton of wood, but you are welcome to come harvest some buds.
It produces lots of male flowers and very few female so far. Last I checked it has 2 small fruit on the 2 female blooms it had this year.
If the buds don't look impressive, at the very least you can have a bouquet of male flowers from this tree next year.
My ex, the food explorer, bought a Chocolate persimmon. Immediately, the top died. Right at the graft, about a foot above the ground. Last time I looked, it was a foot high persimmon tree, covered with persimmons.
So, I don't have a Chocolate to graft from. But, it appears Chocolates may be fussy about what they are grafted to.
Perhaps it would be better to root a cutting?