Moss, Mold, Mildew, & Algae Control TerraCyte Moss & Algae Control kills algae, moss, and fungi quickly on turf grass, walks, patios, decks, roofs, fences and landscapes. Reliable, easy-to-use, and proven effective. One container will cover & treat up to 6500 square feet of area! TerraCyte Moss & Algae Control is the reccomended treatment for synethetic turf products. Whether it is a backyard putting green or a beautiful synthetic lawn, this is the product to use if Mold, Mildew, Moss, or Algae plague your installation. TerraCyte Moss & Algae Control can be used in the following applications: Established Algae, Moss, Slime Molds, or Fungi. TerraCyte Moss & Algae Control can be sprinkled over watered areas to be treated in lawns for quick control. Once treated area turns a rust color, rake out dead debris. Lawn Spreader Application Use TerraCyte Moss & Algae Control with any type of lawn spreader for lawn and landscape applications. Spread TerraCyte Moss & Algae Control over pre-moistened areas with a uniform coverage. Be careful to prevent overlapping which will result in over application of the product. Spot Treatments Use TerraCyte Moss & Algae Control anytime algae, moss, slime molds, or fungi are actively growing around ornamental shrubs or in flowerbeds. Sprinkle TerraCyte Moss & Algae Control over pre-moistened areas to be treated. Once treated area turns a rust color, rake out dead debris. Walkways and Hard Surfaces Evenly Spread TerraCyte Moss & Algae Control evenly over pre-moistened areas to be treated. Once treated area turns a rust color, rake out dead debris. Note: TerraCyte Moss & Algae Control is activated by moisture. Applications must be made over wet surfaces. Thoroughly water surface to be treated. TerraCyte Moss & Algae Control is not intended for newly seeded or newly established lawns