Naturally kills and controls a broad range of weeds, and lichen, algae and moss. Its rapid, non-selective formula controls weeds including: barnyard grass, camel melon, capeweed, chickweed, common storksbill, couch grass, clover, fat hen, giant brome grass, indian hedge mustard, lambs tongue, peppercress, potato weed, perennial ryegrass, sowthistle, stinking roger, whorled pigeon grass, algae, moss and lichen.