What does compatibility refer to when mixing two or more pesticides?

The concept of compatibility in the context of mixing pesticides primarily focuses on the ability to safely combine and apply those substances without causing adverse effects. This is crucial because certain mixtures can lead to phytotoxicity (harm to plants), reduced effectiveness, or even harmful interactions that can pose risks to the applicator and the environment. A compatible mixture ensures that the pesticides work together in a manner that maintains their intended effectiveness while minimizing any negative impacts that could arise from the combination.

In this context, while other factors like increased efficacy or cost reduction can be considerations in pesticide application, compatibility specifically addresses the safety and effectiveness of the mix in practical use. Therefore, the proper understanding of compatibility ensures safe practices in agricultural methods, protecting both the crops and the applicators involved.