Hops are an important crop worldwide and a key ingredient for beer production. Hop plants (Humulus lupulus) are attractive to many insects and microbes, so disease management is an important part of hop production. Through support from Project GREEEN, we developed and tested molecular diagnostics for hop virus and viroid infections that are common in Michigan and other areas. Diagnostic services for growers are now available through Michigan State University Plant & Pest Diagnostics. For more information, please visit https://www.canr.msu.edu/news/msu-plant-pest-diagnostics-provides-testing-for-hop-viruses-and-viroids