Ranger Pro with 41% Glyphosate (same active ingredient as Roundup) is a complete broad spectrum post-emergent professional herbicide. Ranger Pro is the generic of Roundup Pro, and is equivalent and just as effective as the name brand, only much less expensive. This generic roundup will kill most weeds and grasses. It is formulated as a water-soluble liquid with surfactant, therefore no additional surfactant is needed. Ranger Pro moves through the plant from the point of foliage contact to and into the root system. It is then absorbed into the soil and breaks down naturally, and therefore will not spread through the ground and kill neighboring plants.