Monterey Bi-Carb Old Fashioned Fungicide

Monterey Bi-Carb Old Fashioned Fungicide

Microencapsulated potassium bicarbonate for homeowner control of powdery mildew on all common crops and ornamentals. When Great-Grandma got powdery mildew on her roses, she reached for a box of baking soda (sodium bicarbonate). Potassium bicarbonate is a more effective and less phytotoxic version of this old-fashioned remedy.

Use a sprayer that can reach the undersides of leaves (like our Solo 2L Hand Sprayer), because this product must come in contact with fungal cells to be effective. Less toxic than copper sprays, which are the only other organic fungicide that can cure an existing outbreak.

Not registered for commercial use; commercial growers should use MilStop, which has the same active ingredient. EPA reg. 54705-10. NEW!

8665 Monterey Bi-Carb Old Fashioned Fungicide
Item Discounted
A: 4 oz $12.25 Free Shipping
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Additional Information

Organic Certification

Inoculants, soil amendments, fertilizers, livestock supplies and pesticides are labeled as:
OMRI: Organic Materials Review Institute. Most state certifying agencies, including MOFGA, accept OMRI approval.
MOFGA: Maine Organic Farmers & Gardeners Association. Reviewed by MOFGA and allowed for use on MOFGA-certified farms. Check with your certifier.
WSDA: The Washington State Department of Agriculture’s Organic Certifying division has approved these products for use in organic agriculture in Washington State. MOFGA has indicated that they will accept products on this list for their certification program. Check with your certifier.
Nat’l List: One-ingredient products on the NOP* List of Allowed Substances (subpart G of the Organic Foods Production Act, sections 205.601-606). Check with your certifier.
AYC: Products whose active ingredient is on the list of allowed substances, but which are not on the OMRI or WSDA list. Ask your certifier.
Not Allowed: A few of the products we list are not allowed for organic production but we think they have a place in sensible agriculture and can be used when certification is not an issue.

• Click here for our list of soil amendments, fertilizers, and disease and insect controls along with their certification status and manufacturers.