Pulverize Weed and Grass Killer is a fast acting, weed, grass, algae and moss killer. Application directions: spray weeds thoroughly when weather is dry and warm (application rate 6 oz. Weed Type: Annual Bluegrass, Common Chickweed, Dandelion, Lambsquarters, Moss, Liverworts, and Algae, Mouse-Ear Chickweed, Mustard, Plantain, Thistle. ).