Drill Herbicide delivers reliable, long-lasting control of many annual and perennial grasses and herbaceous weeds. Trusted for decades, it provides time-tested performance in citrus and more than 20 other labeled crops. With its unique combination of residual activity and application flexibility, Drill Herbicide remains a preferred choice among professional growers. When applied prior to the emergence of crops and weeds, Drill Herbicide controls susceptible species at their most vulnerable seedling stage, preventing early competition and protecting crop yield potential. Under favorable moisture conditions, it continues to control weeds as the crop develops — maintaining a clean start and consistent growth environment. Moisture is required to activate the herbicide. For best results, rainfall or irrigation should occur within two weeks after application. Soils with high clay or organic matter may require higher rates for optimum performance. For post-emergence applications, best results are achieved on young, actively growing weeds under warm and humid conditions. The addition of a nonionic surfactant where recommended enhances contact activity. Note: Drill Herbicide is not labeled for use on turfgrass in residential or recreational areas, including lawns, parks, schools, daycare facilities, or sports fields.