Today the nodules have "hatched" and the black spikes have turned into orange bananas, albeit, rather small ones. Here's the side of the tree:
That's a petal from the apple tree next to it
You can see a blue Juniper berry in the upper left.
Here's a close-up of one of the fruits:
The center is about the same color the original spiky ball was
Here's a close-up of a large one, just about to pounce.
I've never seen my tree do this before, so any ideas? If you eat a bowl full for breakfast, do you gain super powers or just turn into Groot?
Update! Ask and ye shall find! This is Cedar (or Juniper)-Apple Rust Fungus which grows on the Cedar (and Juniper!) and spreads to the Apples within a few hundred feet. Harmless to the Juniper, it degrades the quality of the fruit from the apple although the apples are still OK to eat.