Product Information Pathclear Weedkiller is a systemic weedkiller containing glyphosphate to kill weeds completely (including roots). It also acts as a resiudal weedkiller that prevents germination of new weeds for up to three months. Under ideal conditions some weeds may be controlled for up to 6 months. Pathclear is a total herbicide, which means that it will kill all green plants, it should not be applied to cultivated areas such as lawns and flower borders unless you wish to kill them. Pathclearﾥ_ﾬ Weedkiller + Preventer - Key Features Triple action weedkiller that kills weeds and roots and prevents germination of weed seedlings for up to 3 months (up to 6 months under ideal conditions).