Plant Disease Clinic Update - May 23, 2007

Samples with the following problems have been seen in the Clinic recently:

• Anthracnose of ash
• Canker on dogwood
• Cedar-quince rust on juniper
• Colletotrichum leaf scorch on daylily
• Cytospora canker on cottonwood
• Mite injury on spruce
• Oak tatters on bur oak
• Rhizosphaera needle cast on spruce
• Rust on rose
• Sooty mold on white pine
• Suspected herbicide injury on various plants

Rust on a rose sample.