we have a satsuma plum tree that has never produced and every year the leaves are curled and shriveled. we have another tree next

Question

to it and it is fine. we don’t see any bugs on it

Answer 1

It sounds like there is a fungal infection within the tree. Is the tree beside it the same kind? Do you have photos? It will be hard to judge what is going on without knowing what kinds of treatment that it has, and without seeing the damage.

Please include photos, and just a little more information about the weather, how much water it has received, and about the other trees in the area.

It sounds like a fungal infection, but if the tree right beside it is the same exact tree, then it would be strange not to see signs on that one as well.

For now, this article will help: https://www.gardeningknowhow.com/edible/fruits/plum/plum-trees-not-fruiting.htm