Physan 20 is a broad-range disinfectant, fungicide, virucide, and algaecide which effectively controls a wide variety of pathogens on non-porous hard surfaces and plants. The EPA-approved concentrate is formulated with unique germicidal agents to provide overall protection for your plants and greenhouses. Using contaminated gardening supplies and even human hands cause harmful organisms to be carried from plant to plant. With two active ingredients, Physan 20 controls these disease-spreading organisms, protecting your plants from further damage.Applications include algae control of fountains, pools, walls, walkways, and evaporative coolers. Disinfect work areas, benches, and cutting tools. Use on seeds, seedlings, and cut flowers. You'll be able to keep your plants healthy and outdoor decorations looking pristine using this multipurpose, 16-ounce bottle of concentrate.You and your family can have peace-of-mind knowing this agent poses no human or environmental risk when it is used at recommended levels and according to label instructions. However, this product is toxic to fish. Refer to the mixing guide to receive the best results for your plants, surfaces, and backyard ornaments.