Persimmon tree fruit drop
Here are some possibilites for why the fruit dropped before ripening:
- Lack of moisture.
- Too much nitrogen.
- Not enough sunshine.
- Late freeze can cause premature fruit drop.
- Depending on cultivar, fruit can reach maturity without pollination, but others require pollination to prevent premature fruit drop or failure to develop fruit.
I would check with the Montgomery County Agricultural Extension Service which serves your area:
1015 Bridge Road, Suite H
Collegeville, PA 19426-1179