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Disease Management

Grape Powdery Mildew Control in California Vineyards [2021]

Disease Management
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$20.00
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Sponsored
by
WFP logo for Grape Powdery
Grape Powdery Mildew Control in California Vineyards [2021]
  • Overview
  • Outline
  • Credit
  • Sponsors

OVERVIEW

Grape Powdery Mildew is the number one disease in California vineyards. More dollars are spent on powdery mildew control and, yet, this disease still accounts for more crop losses than any other grape pest. This course, sponsored by Western Farm Press, explores the different fungicide classes; treatment options for powdery mildew in California; resistance management, and regional differences in disease development. It also includes a detailed approach to using the UC Powdery Mildew Risk Assessment Index (RAI) to predict infections. Seasonal patterns of disease development differ from region to region (as well as year to year), and cost-effective management strategies must be based on local conditions that favor or inhibit pathogen reproduction. Season-long control depends on reducing early-season inoculum and subsequent infections with well-timed fungicide applications. Spray timing and frequency (and coverage) is everything; these vary depending on local weather, temperature, varietal susceptibility, vine growth stage and material choice.

Course Features

  • Lectures 14
  • Questions 20
  • Duration 1 h (approx)
  • Share:
  • COURSE OUTLINE

    • Introduction
      4 min.
    • General Disease Epidemiology
      10 min.
    • Powdery Mildew (Erysiphe necator) Symptoms
      2 min.
    • Treatment
      2 min.
    • Critical Role of Temperature and Moisture
      4 min.
    • Varietal Susceptibility
      2 min.
    • Regional Differences in Disease Development
      6 min.
    • Monitoring for Powdery Mildew
      2 min.
    • To Trigger the RAI
      4 min.
    • Weather Stations
      6 min.
    • General Management Guidelines
      4 min.
    • Pre-Bloom Control Strategies
      2 min.
    • Cautions with Sulfur and Oil
      2 min.
    • Resistance Management 101 and Fungicide Resistance
      8 min.

CREDIT INFORMATION

This course is accredited by:

  • California Department of Pesticide Regulation (1 hour Other)
  • Certified Crop Adviser (CCA) Accredited in U.S. and Canada (2 hours IPM)
  • Hawaii Department of Agriculture (1 CEU, Private 1, Commercial 1a, 10)
  • Oregon Department of Agriculture (1 Credit, Other)
  • Pennsylvania Department of Agriculture (2 credits each: 00, PC, 02, 18)
  • Tennessee Department of Agriculture (1 CEU in 1, 4, 10, 12)
  • Washington State Department of Agriculture (Credit: Max: 1)
  • West Virginia Department of Agriculture (2 Credits in Categories 1, 11, 12, and private applicator)

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

Sponsor Information

As part of Informa Markets, Farm Progress is the largest, most diversified agriculture information business in North America. Through a robust network of live events, digital products, data, marketing services, broadcasting and local and national publications, Farm Progress enables the nation's most economically significant farmers, growers and ranchers to connect and do business. Our brands include Farm Futures, Farm Progress Show, the nation’s largest outdoor farm show, Western Farm Press, Prairie Farmer, BEEF, and many additional. The company serves nearly 80% of the 2 million farms and ranches in the U.S., and an estimated 85% of the nation's annual agricultural gross domestic product. Learn more about Farm Progress at Marketing.FarmProgress.com. 

  • Overview
  • Outline
  • Credit
  • Sponsors
$20.00

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