Biosafe 600232 Zerotol Ready to Spray Fungicide/Bactericide, 32-Ounce Effective against anthracnose, black spot, powdery mildew, rusts, botrytis/grey mold, leaf spot and other common ornamental diseases Powerful alternative to copper-based products Meets national organic program standards; long-lasting 12,000-square feet of coverage Leaves no chemical residues behind; begins working immediately Available in 32-ounce bottle