My cherry tree leaves are edged with brown. How do I treat this?

Question

This cherry tree has never provided much fruit even though it is in near proximity to another cherry tree

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Answer 1

These articles should help:

https://www.gardeningknowhow.com/plant-problems/environmental/what-causes-brown-edges-on-leaves-of-plant.htm

https://www.gardeningknowhow.com/edible/fruits/cherry/leaf-spots-on-cherries.htm