"Scotts Path Clear EcoSence" grass and weed killer offers visible results seen within hours. Weeds are controlled within 1-2 days. Formulated from acetic acid (vinegar) & citric acid (lemon juice). Ideal for use in municipalities with herbicide and pesticide restrictions. Apply on actively growing weeds. Biodegradable, non-staining. 1 L concentrate makes 56.6 L - ideal for large areas.