Herbicidal concentrate compositions containing a combination of glyphosate salt and dicamba salt are provided. For example, a low volatility aqueous herbicidal concentrate composition including a glyphosate salt, dicamba salt, and a surfactant is described, wherein (i) the composition contain a total active herbicide loading of glyphosate salt and dicamba salt of at least about 450 grams acid equivalent per liter； (ii) the pH of the concentrate composition is less than about 5.7； and (iii) the acid equivalent weight ratio of glyphosate salt to dicamba salt is from about 1:1 to about 3:1.
