Ready to spray. treats uo to 500 square feet. make suree knob is twisted fully clockwise to off position, shake well before attaching to hose. \avoid squeezing bottle.Safer brand moss and algae killer is ideal to use on roofs, decks, siding, walkways, home greenhouses, growing containers and benches, hardened bark of trees, lawns and turf. it eliminates mosses, algae, lichens, liverworts and grime.
2% herbicdal soap (potassium salt of fatty acids)
