Hop IPM Meetings

None currently scheduled.

Susceptibility to Powdery Mildew and Downy Mildew for Selected Varieties

Variety Powdery Mildew Variety Downy Mildew
Comet R Hallertau Gold R
Crystal R Hallertau Magnum R
First Gold R Hallertau Tradition R
Newport R
Cascade R/MS Perle R
Newport MR/R Spalter R
Mt. Hood MS/R
Nugget S/MR/R Columbia MR
Fuggle MR
Fuggle MR Pioneer MR
Hallertau Tradition MR Sterling MR
Pioneer MR Teamaker MR
Teamaker MR U.S. Tettnanger MR
Willamette MR
Centennial MS
Columbia MS Olympic MS
Hallertau Gold MS Saazer MS
Hallertau Mittelfruh MS Saazer 36 MS
Horizon MS Tettnanger MS
Liberty MS
Tettnanger MS Brewers Gold S
Bullion S
Brewers Gold S Cascade S
Bullion S Centennial S
Chinook S Chinook S
East Kent Golding S Comet S
Galena S Crystal S
Galcier S East Kent Golding S
Hallertau Magnum S First Gold S
Late Cluster S Galena S
Northern Brewer S Galcier S
Olympic S Hallertau Mittelfruh S
Perle S Horizon S
Saazer S Late Cluster S
Saazer 36 S Liberty S
Spalter S Mt. Hood S
Sterling S Northern Brewer S
Tolhurst S Nugget S
U.S. Tettnanger S Tolhurst S
Vanguard S Vanguard S
Willamette S

Disease susceptibility ratings are based on greenhouse and field observations in experimental plots and commercial yards in the Pacific Northwest as of 2015. R=Resistant; MR=moderately resistant; MS=moderately susceptible; S=susceptible (Gent et al, 2015)

Sources for Common Scouting Tools

Flagging Tape

Ben Meadows


Forestry Suppliers

http://www.forestry-suppliers.com/search.asp?stext=Flagging tape




Hand Lens

Ben Meadows


Forestry Suppliers

http://www.forestry-suppliers.com/search.asp?stext=Hand lens




Yellow Sticky Cards

Olson Products Inc.


Evergreen Growers Supply




Read the label before applying any pesticide.  Cornell and Penn State Cooperative Extensions, and their employees, assume no liability for the effectiveness or results of any chemicals for pesticide usage.  No endorsements of products are made or implied.

Cornell University Cooperative Extension provides equal program and employment opportunities.  Contact the Lake Erie Regional Grape Program if you have any special needs such as visual, hearing or mobility impairments.

Historical map of hop production across the United States in 1879. Each dot represents 100,000 bales; 1 bale - 200 pounds of dried hops.