Roundup Concentrate Extended Control Weed and Grass Killer Plus Weed Preventer II

The dual-action formula of Roundup Concentrate Extended Control Weed & Grass Killer Plus Weed Preventer II kills existing weeds down to the root, guaranteed!* And keeps new weeds from growing for up to 4 months. Plus, the Roundup Extended Control can be used on driveways, sidewalks and patios; along fences, foundations, curbs retaining walls and edge of lawns, as well as on decorative rock or gravel areas. Simply add 6 fl. oz. of the concentrate to 1 gallon of water in a Roundup Brand Premium Sprayer. Rainproof in 30 minutes with visible results in 6 hours. Roundup works. Fast.