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Fungicides & Plant Disease

Healthy soils and correct growing conditions are the best ways to prevent many plant problems from ocurring. But if you notice wilting, mold, rust, blotches, scabs or decaying tissue on your plants it’s time to hit them with our organic fungicides and disease fighters. Most are made from naturally-available oils and other components, some are even listed with OMRI for use on organic gardens. For best results, apply as soon as the first signs of disease are spotted. Not sure what’s on your plants or how to treat them? View our Plant Diseases page for pictures, descriptions and remedies.

  • 3-in-1 Garden Spray 1

    3-in-1 Garden Spray

    Contains sulfur and insect killing soap derived from natural fats and plant oils.

  • Actinovate Fungicide


    This one-stop fungus fighter works from root to leaf with a concentrated beneficial …

  • Bi-Carb Fungicide

    Bi-Carb Old Fashioned Fungicide

    Controls and eradicates powdery mildew. Monterey Bi-Carb is a fungicide containing micro-encapsulated potassium bicarbonate as the active ingredient (baking soda). ...

  • Copper Soap Fungicide 1

    Copper Soap Fungicide

    Year 'round protection from plant diseases! Worry Free Copper Soap is a patented, fixed copper fungicide, made by combining a ...

  • Fire Blight Spray 1

    Fire Blight Spray

    Contains the powerful antibiotic streptomycin sulfate (21.2% ) for the control …

  • Fruit Tree Spray

    Fruit Tree Spray

    Broad-spectrum insecticide, fungicide & miticide! Contains both pyrethrins and …

    $19.95 $16.50
  • Garden Dust 1

    Garden Dust

    Not sure what’s bugging your plants? Garden Dust is specially formulated to …

  • Green Cure Fungicide 1

    Green Cure

    A highly effective powdery mildew treatment for indoor plants, greenhouse and …

  • Liquid Copper Fungicide 1

    Liquid Copper

    Use to combat a wide variety of fungal diseases, including powdery mildew, black spot …

  • Liquid Copper Spray 1

    Liquid Copper Spray

    Approved for organic gardening! Bonide Liquid Copper Spray controls a wide range of plant diseases, including powdery mildew, rusts, black ...

  • Mycostop


    Developed from a naturally occurring bacteria, Streptomyces griseoviridis, Mycostop Biological Fungicide thrives in the root zone of plants. When applied ...

  • Natural Disease Control

    Natural Disease Control

    Ideal for organic gardening! Monterey All Natural Disease Control is a ready-to-use blend of naturally occurring ingredients that control plant ...

  • Monterey Neem Oil - RTU 1

    Neem Oil Spray

    Available in a NEW ready-to-use formula, Monterey Neem Oil Spray has both fungicidal and insecticidal properties to control black spot, ...

  • Bonide Orchard Spray

    Orchard Spray

    A safe, one-hit solution for many types of insect and fungal problems.

  • Neem Oil

    Organic Neem Oil

    A broad spectrum insecticide, miticide and fungicide, Monterey 70% Neem Oil controls numerous diseases as well as insects and mites. ...

  • Rose Defense

    Organic Rose Defense

    Insecticide, fungicide & miticide. An effective 3-in-1 organic pest control, Green Light Rose Defense contains 70% neem oil to safely ...

  • Garden Spray


    Ideal for use on a wide variety of insects, mites, scale and certain fungal diseases.

  • Physan 20 1

    Physan 20

    Use as a general disinfectant for cleaning tools, planter trays, pots and soil.

  • Plant Doctor

    Plant Doctor

    An earth-friendly systemic for use on turf, fruit trees, vegetables, flowers …

  • Safer Garden Fungicide 1

    Safer Garden Fungicide

    Ideal for use on fruits, vegetables and flowers! Safer Garden Fungicide contains sulfur (0.40%) to control a long list of fungal ...

  • Serenade Disease Control

    Serenade Garden

    Provides protection against many of the most common fungal and bacterial …

  • SNS 244 Natural Fungicide

    SNS 244 Fungicide

    Made from 100% pure food grade materials, SNS 244 Fungicide works by killing fungal spores through a biochemical interaction. Some ...

  • Sulfur Plant Fungicide 1

    Sulfur Plant Fungicide

    Effective against powdery mildew, rust, scab, brown rot, rose black spot and …

  • Zero Tolerance Fungicide 1

    Zero Tolerance Fungicide

    Kills existing plant diseases fast and prevents new fungal problems from starting.

    $16.95 $15.00