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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.

  • Organic Neem Oil

    70% Neem

    For indoor/outdoor use on ornamental plants, flowers, vegetables, trees …

    $19.95 $17.50
  • Actinovate Fungicide


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

    $11.95 $9.50
  • Bi-Carb Fungicide


    Contains micro-encapsulated potassium bicarbonate (baking soda) as the active …

    $9.95 $7.50
  • Fire Blight Spray 1

    Fire Blight Spray

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

  • Bonide Garden Dust

    Garden Dust

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

  • Safer Garden Fungicide 1

    Garden Fungicide

    Use to control a long list of fungal diseases including powdery mildew, rust …

  • Green Cure Fungicide 1

    Green Cure

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

  • Sulfur Burner

    Greenhouse Vaporizer

    Turns sulfur prill into a fine dust that prevents plant fungus, mold and …

    $127.95 $121.50
  • Liquid Copper Fungicide

    Liquid Copper

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

    $17.95 $16.50
  • Liquid Copper Spray

    Liquid Copper Spray

    Controls a wide range of plant diseases, including powdery mildew, rusts, black …

    $12.50 $8.95
  • Mycostop


    Used by growers for diseases caused by Pythium, Fusarium, Botrytis, Alternaria …

  • Natural Disease Control

    Natural Disease Control

    A ready-to-use blend of naturally occurring ingredients that control plant foliar diseases.

    $14.95 $9.95
  • Monterey Neem Oil - RTU

    Neem Oil – RTU

    Ready to spray formula is ideal for use both indoors or out. Apply at first sign of …

    $14.50 $8.95
  • Orchard Spray

    Orchard Spray

    This concentrated formula works fast and is safe to use on most plants.

  • Organocide Spray


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

  • Physan 20

    Physan 20

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

  • Plant Doctor Systemic Fungicide

    Plant Doctor

    An eco-friendly systemic for use on turf, fruit trees, vegetables and more!

  • Serenade Disease Control

    Serenade Garden

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

    $12.95 $9.50
  • SNS 244 Natural Fungicide

    SNS 244

    Works by safely killing fungal spores through a biochemical interaction.

  • Sulfur Plant Fungicide

    Sulfur Plant Fungicide

    Effective against powdery mildew, rust, scab, brown rot, black spot and many more.

  • Sulfur Prills

    Sulfur Prills

    This pure formulation of soil sulfur will help you eliminate mildew and reduce …

  • Zero Tolerance Fungicide 1

    Zero Tolerance Fungicide

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

    $16.95 $15.00
  • Dig Deeper (Articles)