This non selective post emergent herbicide acts as a soil sterilant to create bare ground and prevent plant growth for up to one year after application. It is effective against hard to control weeds and grasses including Johnsongrass bindweed annual and perennial weeds downy bromegrass oatgrass goosegrass quackgrass puncturevine goldenrod plantain wild carrot and other tough vegetation. One quart treats up to 2500 square feet, making it a dependable solution for long term vegetation control. Ideal use sites include around buildings fences recreational areas fuel tanks roadways airports highway medians and pipelines. The active ingredient is 25 percent Prometon.