The application of 2-4-dB for butyrac (butyrac 200 in the video) should be followed by the label. Each crop/species spraying has different rates. For the PlotBoost, just mix on the acreage basis for what you are spraying in the tank. PlotBoost EXAMPLES: if you are spraying 2 acres with 35-gallon tank mix both in. If you are spraying 1/4 acre, only mix in a 1/4 of the bottle.