Proven Effective

Developed by renowned plant pathologist, Dr. Ken Horst of Cornell University, GreenCure® the potassium bicarbonate-based fungicide is the safer alternative to harsh chemical fungicides.

In more than 200 university trials, GreenCure® has been proven to be comparable to or better than other fungicides.

GreenCure® has been proven effective against powdery mildew, rose black spot, anthracnose, downy mildew and many other plant diseases.

The GreenCure® formula has been successfully used for 10 years in large-scale organic agriculture and commercial growing applications.  It is used in some of the finest orchards, vineyards, and vegetable farms as well as public gardens and greenhouses.

GreenCure® is now available to home gardeners and small organic gardeners.

(Learn more about its effectiveness)

GreenCure® Knocks Out Powdery Mildew

Powdery mildew on pumpkin leaf, sprayed twice with GreenCure®.
One week between applications. Shows complete control of disease.

Advantages of GreenCure®

Kills powdery mildew and other diseases on contact and provides
up to 2 weeks of residual protection

• Alternative to harsh chemicals
• Proven effective in 200 university trials and 10 years in organic agriculture
• Fully dissolves in water
• Odorless - no foul smell
• Sprays on evenly and sticks to
  plant surfaces
• Fruit and vegetables can be harvested as soon as 1 hour after spraying
• Does not restrict plant growth
• Economical
• Does not accumulate in soil
• Compatible with many beneficial insects
• For Organic Production

Use GreenCure® for organic gardening. Fulfills USDA's National Organic Program (NOP) requirements.

Compendium of Rose Diseases and Pests book

GreenCure® developer Dr. Ken Horst has released an updated and enhanced second-edition Compendium of Rose Diseases and Pests.

Dr. Horst, who is considered one of foremost experts on plant disease brings to the reader his vast experience dealing with diseases such as powdery mildew, black spot, rose canker, botrytis blight, verticillium wilt and other diseases caused by fungi.

This book is an invaluable resource for serious rosarians, commercial growers, garden centers and even casual gardeners who have a special interest in growing roses.