I was recently asked if there was any issue with adding Dual Magnum to Cadre plus 2,4-DB for additional residual weed control.  I don't know of any issues in terms of weed control, crop safety or settling in the tank. That is the case for the vast majority of the herbicide mixtures, especially contact herbicides. We do have issues with grass control by clethodim and sethoxydim applied with herbicides like Ultra Blazer, Storm, Cobra and Basagran. Increasing the grass herbicide rate can help overcome reductions in grass control caused by the contact herbicides. We provide a discussion of pesticide compatibility in 2022 Peanut Information (see chapter 9.)