Ask-a-Dave's-Gardener: Sick Magnolia Tree, 1 by lynncalbers

lynncalbers wrote:
I\'m in the Orlando area in zone 8 (I think?) The magnolia tree on the rental property I live on is sick with some kind of fungus I think. It has spots all over about 15% of the leaves that look like mold or mildew. Can someone please help me identify what it is we\'re dealing with here? It\'s an absolutely gorgeous tree, I hate to see it suffering. And I\'d like to inform the management company so that measures can be taken to bring the tree back into good health.