266: Soft Pesticide Trial: Powdery Mildew, Downy Mildew, Botrytis, and Sour Rot

Managing pests like powdery mildew, downy mildew, botrytis, and sour rot can be a complex challenge. Andy Fles, Vineyard Manager at Shady Lane Cellars in Michigan, shares insights from his USDA Sustainable Ag Research Education producer grant project. The project compares two pest management approaches: a ‘soft’ pesticide program and a conventional one. Andy conducted the experiment using his on farm sprayer, providing real-world results. Despite climate variability and fluctuating pest pressures, the soft pesticide program proved effective. The project underscores the potential of using softer chemistries to manage disease while maintaining fruit quality.

Resources:        

• REGISTER: April 25, 2025 | Fungicide Spraying: Evolving Strategies & Grower Insights
• 80: (Rebroadcast) The Goldilocks Principle & Powdery Mildew Management
• 117: Grapevine Mildew Control with UV Light
• 197: Managing the Sour Rot Disease Complex in Grapes
• 219: Intelligent Sprayers to Improve Fungicide Applications and Save Money
• 235: Battling Fungicide Resistance with Glove Sampling
• Rufus Issacson, Michigan State University
• Shady Lane Cellars Secures $11K National Farming Grant
• Timothy Miles, Michigan State University

Vineyard Team Programs:

• Juan Nevarez Memorial Scholarship - Donate
• SIP Certified – Show your care for the people and planet  
• Sustainable Ag Expo – The premiere winegrowing event of the year
• Vineyard Team – Become a Member

Get More

Subscribe wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.  

Transcrip