Young Sorbus Cardinal Royal Mtn. Ash Tree Has Curling Leaves And Dropping Some Berries

Question

It has full sun and irrigation. Planted 2 years ago.

Answer 1

With trees, I don't recommend irrigation once they are established. Too much water will cause soil infections to establish in the soil, since lack of oxygen will allow them to do so.

Fungicides may be necessary:

https://www.gardeningknowhow.com/garden-how-to/info/what-is-copper-fungicide.htm

https://www.gardeningknowhow.com/ornamental/trees/ash/showy-mountain-ash-trees.htm