Sierra Natural Science 244 Fungicide Control, 14.5 Ounce Kills Fungus & Mildew and Is Highly Effective For the Control of a Broad Spectrum Of Vegetable, Fruit & Ornamental Plant Fungal Diseases As a topical spray SNS-244 Natural Fungicide kills the fungus through a biochemical interaction on the spores SNS-244 Natural Fungicide suppresses fungal spores and nurtures the plant cells to increase the plant's ability to fight the disease