Tools & Supplies Pest and Disease Controls Fungicides
The GreenCure organic fungicide container.
Fungicides
Fungicides can be applied when necessary to address occurrences of early blight and late blight, downy and powdery mildew, leaf spot, black rot, Fusarium, Pythium, Rhizoctonia, and other crop-damaging fungal pathogens. Most of our fungicides are approved for use in certified-organic production by the Organic Materials Review Institute (OMRI), and some by the Washington State Department of Agriculture (WSDA). Look for our OG symbol, as well as the OMRI and WSDA symbols in our product descriptions. For specific recommendations, refer to our Fungicide Comparison Chart (at right).
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New
Regalia® CG – 1 Qt. Fungicides
Trigger your plants' natural defense systems.
Out of Stock
Trigger your plants' natural defense systems.
New
Regalia® CG – 1 Gal. Fungicides
Trigger your plants' natural defense systems.
Trigger your plants' natural defense systems.
New
Regalia® CG – 2.5 Gal. Fungicides
Trigger your plants' natural defense systems.
Trigger your plants' natural defense systems.
Prevent fungal problems with this 4% copper solution. 1 Pt.
Prevent fungal problems with this 4% copper solution. 1 Pt.
Eliminates human and plant spoilage pathogens on contact.
Eliminates human and plant spoilage pathogens on contact.
Very effective as a foliar spray or as a drench for root diseases.
Very effective as a foliar spray or as a drench for root diseases.
Hydrogen dioxide for field crop or greenhouse use.
Hydrogen dioxide for field crop or greenhouse use.
Potassium bicarbonate fungicides kill mildew on contact.
Potassium bicarbonate fungicides kill mildew on contact.
OMRI listed. Effective organic treatment for powdery mildew.
OMRI listed. Effective organic treatment for powdery mildew.
A "must-have" copper for your disease prevention rotation schedule.
A "must-have" copper for your disease prevention rotation schedule.
OMRI listed. Effective organic treatment for powdery mildew.
OMRI listed. Effective organic treatment for powdery mildew.
Out of Stock
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