discoloured spotty leaves on magnolia

Question

I have 5 young evergreen magnolia fairy blush trees. Some of the leaves are yellow or yellow edges with brown blotches and brown spots on the underside. What is this and how can I treat it?

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Answer 1

I believe this is a fungal leaf spot: http://www.gapphotos.com/imagedetails.asp?imageno=50441

For more information on fungal leaf spot and a course of treatment, please visit the following link:
https://www.gardeningknowhow.com/plant-problems/disease/plant-leaf-spots.htm