Hi-Yield Killzall Weed & Grass Killer, 1 Gallon is a powerful super concentrate designed to effectively eliminate unwanted weeds and grass. This non-selective weed and grass killer features a double surfactant formulation that quickly dries on plants, ensuring fast action down to the root with its active ingredient containing 41% Glyphosate. It is for use near fences, on paths, patios, sidewalks, curbs, and driveways. The formula becomes rainfast in just 2 hours, making it reliable even in unpredictable weather. For general weed control, use 3 tablespoons per gallon of water, while tougher weed and brush control requires 5 tablespoons per gallon. This product comes in a convenient ready-to-use 1-gallon pour bottle, making application simple and efficient.