Scotts MossEX 3300210 Moss Control Liquid 32 oz Bottle

The fast-acting, Scotts 3-in-1 MossEX Ready-Spray kills moss, algae and lichens within hours. Use it on lawns, decks, patios, roofs and buildings. To apply, just attach a hose to the connected sprayer, turn on the water and spray. Won't stain concrete or other surfaces and can be used at any time during the year.