Leaf spots (fungi) Spot anthracnose (fungi)	Round to irregular, yellowish-brown to black spots. Spots may drop out, leaving holes.	Collect and remove fallen leaves. No chemical control is suggested under most conditions.
Powdery mildew (fungus)	Powdery white patches on leaves. If severe, leaves may drop early.	Refer to the PDC Fact Sheet "Leaf Spot Diseases of Shade Trees and Ornamentals" for more information. Remove and destroy fallen leaves. If serious, use thiophanate-methyl. Make first application at bud breakand the second 10 to 14 days later. Under wet conditions, apply a third spray 10 to 14 days later.
Verticillum wilt (fungus)
	Leaves on one or more branches wilt, turn brown, bend downward and drop early. Purple to blueish-brown streaks in sapwood under bark.	Cut, remove severely affected trees. If only 1-6 dead or wilted limbs, prune affected parts. Dip pruning tools in 70% alcolhol or 10% houshold bleach between cuts. No chemical control suggested. Cultivars vary in susceptibility.
University Outreach and Extension does not endorse commercial products. Follow the label on all pesticides.

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	Email: plantclinic@missouri.edu