Great value for large areas, Roundup® brand products help you triumph over the toughest weeds. Roundup® Super Concentrate Weed & Grass Killer kills over 200 types of weeds (as listed) and now features an easy measure cap that helps measure the desired amount of product. Concentrated for extra value, Roundup® Super Concentrate Weed & Grass Killer is perfect for use around shrubs and trees, on patios, walkways, driveways, gravel areas and mulch, and along fences and foundations. It is also ideal for large projects, including lawn replacements or garden plot preparation. For best results, add 2.5 fl. oz. of the concentrate to 1 gallon of water. Use of a Roundup® brand sprayer is recommended. Roundup® Super Concentrate Weed & Grass Killer is rainproof in 30 minutes, and begins working on contact with visible results as fast as 2-4 days. This concentrated formula kills the root so weeds don't come back. No root. No weed. No problem.®