CASORON® 4G 6020913 Dichlobenil Herbicide is the ultimate, easy-to-use tool for controlling a wide variety of weeds and tough-to-kill perennial grasses. Its unique formulation works on pre- and early post-emergent weeds by forming an herbicidal barrier that kills seeds and roots. The active ingredient, dichlobenil, features powerful, nonselective activity, which can be enhanced by tank-mixing with other herbicides for even broader control.