Frigate LW 51% WDG is a PPO inhibitor, which works as a barrier on the soil surface to provide season-long, residual control of tough broadleaf and grass weeds. With the residual power of flumioxazin, Frigate LW 51% WDG is able to fend off many of the toughest broadleaf weeds time and time again. Frigate LW 51% WDG will stay in the soil surface and will not leach as easily as some other herbicides. Pre-plant and pre-emerge applications provide 4-6 weeks of residual control. Fallow or fall applications with higher quantity can provide extended residual control.