Effective herbicide treatment for emergent weeds along shoreline. Weeds must be present to control (cattails and other emergent vegetation). Best kill when emerged weeds are actively growing add non-ionic surfactant to enhance uptake of chemical. Non-selective kills vegetation that receives treatment to the root. 1.5 oz/gal of water plus 2 tsp/gal surfactant of water. 1 qt makes up to 25 gal spray solution. treats up to 10,000 sq-ft/1/4 acre of target weeds. Thoroughly cover weeds for optimum kill.