Skip to main content Skip to navigation

Grower Information

University and Extension Resources

Regional Pest Management Guides

Pacific Northwest
California and Mountain States
Southeast and Mid-Atlantic

Other Peer-Reviewed Resources

App’s of Interest

  • FRAC MOA – Search which active ingredients belong to which mode of action group
  • PMApp – Test your ability to rate powdery mildew! By the University of Adelaide.
  • Calibrate My Sprayer – A quick tool to help with field calibration of sprayers by Clemson University.

Resistance Testing


Interested in participating in grape powdery mildew resistance testing? Contact your regional representative below:

Pacific Northwest

Michelle Moyer or Walt Mahaffee


Monica Cooper


Kaitlin Gold

Midwest and South East

Tim Miles


Walt Mahaffee


Are you a local Extension specialist interested in participating for your region? Contact Michelle Moyer.