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

• Bitter pit on apple
• Black rot of grapes
• Iron chlorosis on pin oak and river birch
• Marssonina leaf spot on aspen
• Mite injury on honeylocust
• Oak wilt
• Pine wilt
• Puffball fungi
• Quince rust on apple
• Rhizosphaera needle cast on spruce
• Scale on white pine and euonymus
• Seasonal needle loss on pine, fir, and arborvitae
• Septoria leaf spot on dogwood
• Sooty blotch on apple
• Stinkhorn mushrooms
• White rot of apple