... severe eye irritantDermal Sensitization: not a dermal sensitizer Use Profile2,4-D comes in multiple chemical forms and is found in ... , water dispersible granules, and wettable powder. Application Rates: For 2,4-D, rates per application and rates per year are generally ... foot for submerged aquatic plants. Application Timing: Timing of 2,4-D application can include at emergence, before bud break, during ...