... an emulsifiable concentrate. Type of Pesticide: Herbicide Target organism(s): A wide variety of broadleaf weeds ... and aquatic weeds Mode of action: 2,4-D is thought to increase cell-wall ... granules, and wettable powder. Application Rates: For 2,4-D, rates per application and rates per ... submerged aquatic plants. Application Timing: Timing of 2,4-D application can include at emergence, before ...