Weedol® PS Pathclear weedkiller is an effective and easy to use solution for killing weeds on gravel, paths, drives & patios. Suitable for all types of weeds, this weedkiller kills weeds right down to the root and creates an invisible barrier that prevents new weed growth for up to 3 months. This product which comes in an easy ready to use spray gun contains glyphosate and diflufenican for a systemic deep rooted kill. For best results lightly spray the weeds and surface in the area to be treated and avoid spraying in adverse weather conditions to avoid spray drifting onto other wanted plants. Keep children and pets away from treated areas until spray has dried.