Resolva Pro Xtra Tough Weedkiller is a ready to use systemic weedkiller ideal for controlling annual and deep-rooted perennial weeds. It delivers effective and quick results even on tough weeds so they don't come back. Resolva Pro Xtra Tough controls a wide spectrum of annual and deep-rooted perennial weeds including grasses, docks, thistles, nettles, dandelions, bindweed and many more. CAUTION: Please read all packaging and instructions thoroughly before use to avoid risks to health and the environment. Lifestyle photographs for illustration, 1x product listed supplied only.