Fungicides for Plants & Organic Disease Control

Fight plant diseases–organically

Leaf coated with white disease-control powder

Fungicides for plants work best as part of a broader disease-management plan. Identify the problem first, improve growing conditions where possible, and choose only a product whose label lists the plant and disease you need to treat.

Plant fungicide types in this collection

  • Copper- and sulfur-based fungicides
  • Biological and botanical disease-control products
  • Horticultural and neem oil formulations
  • Concentrates and ready-to-use options

Always read and follow the product label for approved crops, diseases, rates, timing, protective equipment, and harvest restrictions. Watering at the soil line, increasing plant spacing and air circulation, removing heavily affected material, and cleaning tools can complement a label-directed treatment.

Choose a disease-control pathway

Use our guide to plant disease diagnosis and organic management before selecting a treatment. You can also compare biological fungicides, botanical fungicides, mineral fungicides, oil-based fungicides, and focused powdery mildew treatments.

Diagnosing Non-Disease Problems

Before choosing a treatment, review our guide to abiotic and environmental plant disorders.