Monterey Consan 20 is a concentrated household, lawn, and garden fungicide and algaecide. Also deodorizes, disinfects, and removes mold. Dilute 1.5 teaspoons per gallon of water to control black spot on roses, brown patch on lawns, powdery mildew on crepe myrtles, and algae on garden surfaces. Biodegradable. Active ingredients: Alkyl (C14 60%, C16 30%, C12 5%, C18 5%) dimethyl benzyl ammonium chloride and Alkyl (C12 68%, C14 32%) dimethyl ethylbenzyl ammonium chloride. Always read and follow label directions. 1 pint container.