Roundup Fast Action Spray 1L Convenient ready mixed weedkiller First effects seen in 48 hours Spot treatment to kill most weeds over an area of up to 30m 2 1 litre is enough to kill Approx. 1000 weeds Ingenious spray head with child resistant nozzle & drip guard, designed to spray downwards Jet or spray setting to target individual weeds or wider areas Premixed for easy & effective weed control, this weed killer starts to work in hours. For use on unwanted vegetation, it is absorbed by the leaves & moves throughout the entire plant, above & below ground, to destroy annual & deep rooted perennial weeds, including grasses, dandelions, docks, bindweed & thistles. It is inactivated immediately on contact with soil & is then broken down by soil micro-organisms, to allow replanting.