Herbicide Mixing Cheat Sheet - For a 3 gallon backpack: Web need to pay attention to % active ingredient on label, look for the standard 41% glyphosate, or adjust mixing rates. Web quick reference guide for mixing herbicides*. .64 x 3 = 1.92 or 2 oz herbicide). Web 1 qt/acre =.64 oz x # of gallons water = oz of herbicide for mixture (eg.
.64 x 3 = 1.92 or 2 oz herbicide). Web quick reference guide for mixing herbicides*. Web need to pay attention to % active ingredient on label, look for the standard 41% glyphosate, or adjust mixing rates. Web 1 qt/acre =.64 oz x # of gallons water = oz of herbicide for mixture (eg. For a 3 gallon backpack: