Total Vegetation Control Weed Preventer Concentrate with Glyphosate and Imazapyr is ideal for fence rows, gravel paths, sidewalks, driveways, parking areas and around farm buildings and barns -- anywhere you want to spray once and be done for up to 1 year. This weed killer concentrate features a formula of glyphosate and imazapyr for effective use against most noxious weeds, grasses, vines, brush and trees. This weed prevention product is designed for use on non-crop areas as a spot treatment for brush, vines and weeds or on bare ground for total vegetation control. Do not spray this vegetation killer concentrate over the root systems of desirable plants.