University of Illinois Extension
University of Illinois Extension - Selecting Shrubs for Your Home
Witchhazel Leaf Spot
Phyllosticta hamamelidis
Severity: 3 out of 5
Frequency: 4 out of 5
Symptoms: Spots tend to be irregular brown shaped spots with purplish edges on the upper leaf surface. At the same time, there is a lighter brown spot on the lower surface. Spots may merge to cause larger brown dead areas (blight) that can encompass the entire leaf. This disease tends to make witchhazel an undesirable, up-close landscape plant.
Cycle: The pathogen overwinters on dead plant material. It is spread to new plant tissue by wind and rain.
Management: Follow good sanitation practices.
Associated shrubs: