MilStop® SP Broad-Spectrum Foliar Fungicide - 5lb - OMRI Listed®

MilStop® SP Broad-Spectrum Foliar Fungicide 5lb — OMRI Listed® | Potassium Bicarbonate | Powdery Mildew Control

MilStop SP is a broad-spectrum foliar fungicide with potassium bicarbonate as the active ingredient — highly effective against powdery mildews while also helping prevent other foliar diseases. Potassium bicarbonate disrupts the osmotic balance of fungal cells on contact, causing rapid desiccation and death of powdery mildew colonies. MilStop SP is OMRI Listed for organic production and is labeled for greenhouse, nursery, field crops, interiorscapes, and woody herbs. With a 1-hour REI and Caution signal word, it is one of the most worker-friendly fungicide options available for high-use production environments.

Key Features & Benefits

• Potassium Bicarbonate Active Ingredient: A naturally derived compound that raises the pH on treated leaf surfaces, disrupting fungal cell wall integrity and causing rapid desiccation of powdery mildew colonies on contact. Provides both curative and preventive activity.
• Highly Effective on Powdery Mildew: MilStop SP is one of the most consistently effective OMRI Listed tools for powdery mildew management — particularly in high-humidity greenhouse and interiorscape environments where powdery mildew pressure is persistent.
• Broad-Spectrum Foliar Fungicide: In addition to powdery mildew, helps prevent a range of other foliar fungal diseases.
• Wide Use Site Range: Labeled for greenhouse crops, nursery, field crops, interiorscapes, and woody herbs.
• 1-Hour REI: Exceptionally short re-entry interval supports maximum flexibility in high-frequency spray programs — particularly in commercial greenhouse environments where growers and workers re-enter treated areas shortly after application.
• OMRI Listed® for Organic Use: Certified for organic production programs.
• Application Rate: 1 to 5 lbs per 100 gallons. Signal Word: Caution.

Who Should Use This

Commercial greenhouse growers, nursery operators, interiorscape managers, and organic crop producers managing persistent powdery mildew pressure who need a highly effective, worker-friendly biological fungicide with a short REI. MilStop SP is particularly effective in rotation programs where resistance to other fungicide classes is a concern.

Frequently Asked Questions

What is the active ingredient in MilStop SP?

The active ingredient is Potassium bicarbonate — a naturally occurring compound that disrupts fungal cell membranes through osmotic shock when applied to infected leaf surfaces.

What is the REI for MilStop SP?

The re-entry interval is just 1 hour — one of the shortest REIs available for a foliar fungicide, supporting maximum schedule flexibility in commercial production environments.

Can MilStop SP be used on edible crops?

Yes. MilStop SP is OMRI Listed and labeled for use on greenhouse vegetable and ornamental crops, field crops, and woody herbs. See the product label for specific crop and rate guidance.