Garden fungicide is specially formulated with Sulfur which inhibits the attack of fungal diseases by creating an environment which is not optimal for disease growth. Safer Brand garden fungicide has achieve the prestigious gardening club seal of approval. The Safer Brand garden fungicide utilizes the effectiveness of our popular sulfur-based fungicide. This organic gardening product is an effective, economical and convenient solution to the wide array of fungal blights that consumers face everyday. Garden fungicide controls powdery mildew, black spot and rust.