2, 4-D, its salts and esters are systemic herbicides, widely used for the control of broad-leaved weeds such as Plantago, Ranunculus and Veronica spp. In cereals and other crops at 0.28-2.3 kg/a. After dilution, it can be used to control the broad leaf weeds in the fields of barley, wheat, rice, corn, millet and Sorghum etc.