Common Diseases of Herbaceous Perennials and Woody Ornamentals

Oct. 1: Common Diseases of Herbaceous Perennials and Woody Ornamentals –Jan Byrne, PhD, Michigan State University Plant and Pest Diagnostics

Woody ornamentals and herbaceous perennials are vulnerable to a variety of plant diseases. This webinar will cover several diseases commonly diagnosed at Michigan State University Plant and Pest Diagnostics. Topics will include powdery mildew, downy mildew, rusts, leaf spots, viruses and several diseases that commonly affect boxwood.