herbicide: 2,4-D Acid 98%min; 2,4-D dimethyl amine acid 720g/l SL 2,4-D AcidEmpirical Formula: ... , and wettable powder. Application Rates: For 2,4-D, rates per application and rates per year ... are generally less than 1.5 pounds acid equivalent (ae) per acre per year and ... submerged aquatic plants. Application Timing: Timing of 2,4-D application can include at emergence, before bud ...