Great Lakes Hop Working Group

The Great Lakes Hop Working Group (GLHWG) was formed in December 2014 with organizational leadership provided by Michigan State University. The overarching goals of the GLHWG are to identify and prioritize region-specific hop research needs; generate best management practices for hop production through collaborative research; and efficiently disseminate results amongst members and hop growers across the Great Lakes region and beyond.  The GLHWG meets annually. The group consists of researchers, educators, and industry representatives from: Michigan State University, University of Minnesota, Ohio State University, Purdue University, University of Wisconsin, University of Illinois, University of Vermont, Cornell University, Penn State, North Carolina State University, North Dakota State, Virginia Tech, Iowa State, University of Kentucky, University of Guelph, Ministry of Agriculture, Fisheries and Food of Quebec, the Ontario Ministry of Agriculture and Food, and Hop Growers of America.

2019 GLHWG Needs Identification and Stakeholder Priorities

Working Group Identified Needs

The following working group priorities were agreed upon during the 2019 Great Lakes Hop Working Group meeting in Ontario Canada July 30-31 2019. They are listed in no particular order.


Priority areas: Sourcing clean plant material, virus testing rapid detection, virus regulation, grower education, virus indexing, certification

Pest management

Priority areas: Downy mildew management, IPM education, cultural practices for downy, herbicide protocol and registration needs, postharvest downy mildew management research 


Priority areas: Processing, food safety, QC analytics, pesticide residues/MRLs, drying and packaging, pelletization


Priority areas: Region specific variety development, downy resistance, training date and associated practices, wild hop research

Crop management

Priority areas: Nutrient managements (N), nutrient testing protocol and interpretation, irrigation, frost management, water use efficiency, fertigation


Priority areas: Market accessibility, education and facilitation of cooperative grower efforts, grower group development, CoP, product quality and consistency

Regulatory/Internal needs

Priority areas: IR-4 registrations, central resource hub development, plant material regulation (certification and inspection)

Grower Prioritization of Identified Needs

In late 2019, the working group members distributed a collaborative needs-ranking survey to their producers to help identify where efforts should focus. Growers were asked to prioritize the seven identified issues from 1-7, with 1 being most important and 7 being the least important. The following chart is a summary of identified needs as ranked by 74 hop producers and industry professionals from across the member states and provinces.

Hops Chart

Respondents consistently prioritized pest management related needs, cultivar development and crop management as their top priorities.

Updated June 2020