Annual weeds may be sprayed anytime they are actively growing. Use the lower rate on weeds up to 15cm tall; increase to the higher rate where weeds are over 15cm tall. Visible symptoms develop in 3-7 days but complete desiccation may take 20-30 days under cool conditions. It does not provide residual weed control. Repeat treatments may be necessary to control later germinating weeds.DOSAGE-50 ml/1 Lit water SAFETY DIRECTIONS: Product will irritate the eyes and skin. Avoid contact with eyes and skin. When preparing products for use, wear elbow-length PVC gloves and face shield or goggles. After use and before eating, drinking or smoking, wash hands, arms and face thoroughly with soap and water. After each day's use wash contaminated clothing, gloves and face shield or goggles. When using controlled droplet applicator, wear protective waterproof clothing and impervious footwear.