Penton Online Continuing Education Portal

Grape Powdery Mildew Control in California Vineyards

This course is accredited for licensing categories:  PCAs, Qualified Applicators, Private Applicators/County Permit Holders and Aerial Applicators.

In this course, we’ll explore the different classes of fungicide materials; treatment options for powdery mildew in all three types of grapes grown in California; resistance management; regional differences in disease development, plus general disease life cycle, symptoms, identification and monitoring. This will include a step-by-step approach to using the UC Davis or Gubler-Thomas Powdery Mildew Risk Assessment Index (RAI) to predict initial infections, assess degree of disease pressure throughout the season, and fine-tune spray programs so they are more timely and cost-effective.


You must be logged in to access this course.

Please enter your Username and Password.

Forgot your Password?
Forgot your Username?

If you have not yet registered for our site, Click Here !