Safer 5324-6A Moss and Algae Killer and Surface Cleaner, Liquid, Spray Application, 32 fl-oz

Safer Brand moss and algae killer and surface cleaner effectively eliminates mosses, algae, lichens, liverworts and grime from a variety of outdoor surfaces. The concentrated formula requires no mixing, simply attach the sprayer directly to your garden hose to spray the perfect amount of solution as needed. This product is made from naturally occurring, biodegradable fatty acids, so it won't stain most surfaces or cause metals to corrode. One bottle treats up to 500 sq-ft. This algae and moss solution has been reviewed and listed by the Organic Materials Review Institute for organic use.