Roundup Bioactive 500ml is a professional standard, foliar-acting herbicide with a triple strength formulation that has proven reliability and performance. It controls annual weeds and perennial grass, as well as broad-leaved weeds in non-crop areas. The patented blend of surfactants ensures optimum leaf uptake for improved weed control. It is rainfast in three hours for annuals and in six hours for perennials. The low-foam, no-glug bottle design makes it faster and easier to use. Dilution rates vary from 30 to 60ml per litre of water. This herbicide is designed for professional use and is suitable for treating large areas. A 6-litre bottle will treat one hectare.