Close up of lesions
Close up stem side
I've had this Apple tree for a couple of decades which I had always assumed it was wild since it had always produced sour small apples.
For some years the skin has had these blemishes which extend a little way into the pulp. I never worried too much since I rarely ate the fruit, and if i did it was cooked first. But now to my surprise i am getting some decent sized fruit which for the first time actually tastes sweet. But the fruit is a bit inaccessible since the tree is now two storeys high, and tucked into a poorly accessible area shaded by a tall rhododendron.
So, I'm wondering if this is a fungal disease that I can treat easily noting poor access. It doesn't seem to match the description for bitter pit disease.
Edit: I just realized that I had brought another apple tree onto the property this year, though in a container. Perhaps the pollen from this one caused the fruit on the older one to improve?