• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
Using-Baking-Soda-to-Combat-Powdery-Mildew.jpg

Using Baking Soda to Combat Powdery Mildew

I heard you could use baking soda to control powdery mildew.  Is this true?  If so, do you have the recommended rate?

Cornell University discovered baking soda was an effective control against powdery mildew.  It has been used by gardeners on vine crops, roses, perennials and other edible and ornamental plants.  Start by mixing 1 tablespoon of baking soda in a gallon of water.  Add a teaspoon of insecticidal soap OR lightweight horticulture oil to act as a spread sticker for the solution.  Spray the plants at first sign of the disease.  Repeat every 7 to 10 days throughout the season.

Related

Upcoming Live Events
& Webinars


August 1-11, 2024
Wisconsin State Fair

West Allis, WI

August 1, 2024
Ladies Night Out

Ebert's Greenhouse Village
Ixonia, WI

Sept. 7, 2024
Fall Planting for a Beautiful Landscape

Pasquesi Home & Gardens
Lake Bluff, IL

Sept. 21, 2024
Preparing Your Garden for Winter

Ebert's Greenhouse Village
Ixonia, WI

WATCH ON-DEMAND WEBINARS

Learn More

Book an Appearance

Learn More

Enter to Win The Great Courses' Make Your Trees and Shrubs Thrive DVD set

ENTER NOW