Path Weedkiller concentrate contains an advanced formulation systemic & residual weedkiller gives 6 months of control for gravel paths & drives. This can also be used around ornamental trees & woody shrubs, around the base of walls & sheds or on other waste ground. Kills weeds right down to the roots. Its long lasting formula prevents new weeds growing back for at least 4 months (up to 6 months in ideal conditions). Easy to use soluble sachets, simply drop into a watering can or sprayer. The fast acting results can be seen within 5-6 days & its rainfast in just one hour! Path Weedkiller concentrate contains glyphosate, flufenacet & metosulam Always read the label. Use pesticides safely.