Pulverize® Weed & Grass Killer kills weeds, grasses, algae, and moss. Fast Acting. See results in 20 minutes. Active Ingredient: Ammoniated Soap of Fatty Acids. Pulverize® Weed & Grass Killer is a fact acting weed, grass, algae, and moss killer. Incidental over spray will not stain concrete or pavement. Pulverize® Weed & Grass Killer suppresses the growth of some bi-annual and perennial weeds. It can be used in cultivated areas prior to planting grass or flowers. Areas can be re-sown five days after treatment. Pulverize® Weed & Grass Killer can be used at any time during the year. Best results obtained with young, actively growing weeds, less than five inches in size. Controls Annual bluegrass, chickweed, corn spurry, dandelion, groundsel, lamb's-quarters, large crabgrass, mouse-eared chickweed, mustards, plantain, redroot pigweed, round leaved mallow, sheep sorrel, shepherd's-purse, stinkweed, thistle, moss algae, and lichens. for use around ornamental flowers, mature shrubs, and trees; spot treatment in lawns bordering garden areas; bark mulch; around planters, containers, raised beds and other structures holding flowers, trees, shrubs and vegetables; and in planting beds prior to planting grass, flowers, or vegetables. Ready-to-Use.