I have 2 red delicious apple trees. They were both purchased and planted 2 years ago. Only one of them, however, has produced any fruit (6 apples last year and 3 this year). The fruitless one is growing amazingly (12 ft high) and had around 15 flowers this year but bone of those flowers turned into apples.
I recently started spraying both trees with an organic insecticide that also protects against apple rust.
Is there a problem with this tree? Is there a way to make it produce fruit?
Here is a picture of the tree.