Resolva Pro Xtra Tough Liquid Sachets is a systemic total weedkiller. It contains glyphosate and therefore is extra tough on weeds. It kills perennial broad leaved weeds such as Bindweed, Brambles, Buttercup, Common Nettle, Creeping Thistle and Dandelion, as well as Field Bindweed. Perennial grasses such as couch grass, annual grasses and broad leaved weeds are also controlled. Kills tough weeds & their roots Ideal for use in sprayers Contains glyphosate Why Use Kills tough weeds For control of perennial broad leaved weeds such as Bindweed, Brambles, Buttercup, Common Nettle, Creeping Thistle, Dandelion, Field Bindweed. Also perennial grasses such as Couch Grass, plus annual grasses and broad-leaved weeds No mess formula Where to Use Resolva Pro Xtra Tough Weedkiller Liquid Sachets is a non-selective weedkiller Avoid all contact with wanted plants DO NOT apply to lawns or other wanted plants unless you want to kill them Take extreme care to avoid spray drift as this product kills all green plant growth, including grass! What to Expect Effects may be seen in a few days, but for tougher weeds it may take up to 4 weeks