How old is your seedling?

I was thinking about getting one

I'm not sure how old is it. The tree is about 4 ft tall. So I guess about 3 to 4 years old.

My sugar apple is about 3 years old and it is starting to produce fruit. I think there is 8 very small fruit on the potted tree. When the fruit gets about the size of a pencil eraser, it dries up and falls off. What the heck could cause this.

They can suffer from a fungal infection that causes mummification of the fruit. Spraying with a fungicide should stop that problem.

The older the trees get, the better they produce. Both of mine are 4-6 years old and are loaded with fruit and still blooming. Last year I only got 4 fruits from the Red SA, and none from my Green one. This year they have redeemed themselves.

Supposedly they can fruit at 2-4 years old, but mine took longer.

They set fruit over quite a long time. My trees have flowers, tiny fruits, midsized fruits and large ones all currently.

Lisa

I had the same problem with mummification. Last year my Sugar apple had only one fruit and dried up and fell. The fungus infection theory makes sence because I noticed it on the tree leaves. I had my sprinkler system setup for evening irrigation which caused the leaves to stay wet and pick up that fungus. I have reset my sprinklers for morning irrigation and away from my fruit trees. Hopefully this year I won't have that problem.

I'm from San Diego (Bonita area) I do have a sugar apple and gives me a lot of fruit because I hand pollinate them. I do have atleast 99% success and no fruit mummification. My tree is approx. 5 years old and just recently succesful on air layering them. To avoid fungus infection do not wet the leaves specially at night time and make sure to spray it with mild insect spray (malathion)