Brian from Winston-salem writes
We do not recommend mixing those products together due to the surfactant concern. Quinclorac 75 DF requires the addition of an MSO surfactant for best results, but if you added that kind of surfactant to the Speedzone EW Broadleaf Herbicide for Turf, then you are more likely to damage your desirable grass. Q4 would be a better option as no additional surfactant is required and it targets more broadleaf weeds as well as containing quinclorac.
Answer last updated on: 08/09/2022
