Resolva Pro Weedkiller is a ready to use systemic weedkiller ideal for controlling annual and deep-rooted perennial weeds. It kills roots so weeds don’t come back. Resolva Pro controls grassses, including couch grass, Docks, Thistles, Nettles, Dandelions, Bindweed and many more weeds. Visible effects may be seen after 24 hours. Visable result in 24 hours seen in ideal conditions.