What Are The Best Organic Fungicides in 2025

Organic, ready-to-use fungicide spray for common plant diseases

Captain Jack's Copper Fungicide from Bonide is a 32 oz ready-to-use spray solution for organic gardening. It effectively controls common plant diseases, providing protection for a wide variety of plant species. It is also highly rated by customers, indicating its effectiveness and quality.

Organic copper fungicide for comprehensive plant disease control.

Bonide Captain Jack Copper Fungicide is a 16 oz concentrated plant disease control solution for organic gardening. This product is highly effective in treating a wide range of fungal diseases and is safe for use on fruits, vegetables, herbs, flowers, and ornamental plants.

Organic gardening solution for pest and fungus control.

The Garden Safe Fungicide3 is a 32-ounce, triple-action solution that serves as a fungicide, insecticide, and miticide. It's crafted with Neem Oil Extract, making it suitable for organic gardening and effective in controlling pests like black spot, aphids, and spider mites.

A natural, effective solution for controlling plant diseases and pests.

This Organic Fungicide Liquid Concentrate is a natural solution for combating plant diseases both indoors and outdoors. It effectively treats lawn fungus, powdery mildew, and spider mites while being safe for the environment. It can also treat mushroom infestations in lawns.

Organic copper soap fungicide for control of plant diseases.

The Neudorff Plant Fungicide Spray is a copper soap fungicide designed for organic gardening. It is ready-to-use and comes in a 32 oz bottle. The fungicide is effective for controlling powdery mildew and other diseases, and is safe for use on roses, fruits, and vegetables.

Organic, ready-to-spray fungicide for effective disease control in gardening.

Bonide Captain Jack's Copper Fungicide is an organic, ready-to-spray disease control solution for gardening. It is particularly effective in controlling mildew and blight, making it a favorite among organic gardeners. The product comes in a 16 oz bottle and is easy to use.

Efficient fungicide for disease control in various plants.

Fertilome (11377) Liquid Systemic Fungicide II is a 16 oz solution that helps control and prevent various types of fungus diseases in plants. It is absorbed directly by the plant ensuring efficient disease control and can be used on lawns, flowers, trees, and shrubs.

Organic, ready-to-use Bonide Sulfur Plant Fungicide for controlling common plant diseases.

Bonide Sulfur Plant Fungicide is an organic solution for controlling plant diseases such as rust, leaf spot, and powdery mildew. Available in a 1 lb. ready-to-use package, this fungicide is safe for a wide range of plants and vegetables, preventing disease and promoting healthy growth.