The method of determining Dtotal value for systems with different proportions of the dicamba anion is visualized in Fig. The applied ILs or DSILs were capable of reducing the fresh weight of lambsquarters plants in the range from 61% (AB0.6) to 86% (AB0.2) compared to the fresh weight of control objects, while the commercially available herbicides or their tank mixes were characterized by lower activity in the range from 11% to 57%. These findings indicate that not only ILs but also DSILs were characterized by higher biological activity compared to the reference formulations. In the case of AB0. means that the addition of dicamba allows the reduction of the MCPA dose in DSILs with higher xdic values to be fully compensated, and also confirms that the proposed method of selecting the total dose of both herbicides (Dtotal) proved to be correct.