What could happen if incompatible herbicides are tank mixed?

When incompatible herbicides are tank mixed, they can lead to the formation of clumps or scum, which is a sign of physical incompatibility. This happens because the chemicals in the herbicides do not mix well, causing them to separate or coagulate. Such a mixture can result in uneven distribution of the herbicides when applied, potentially leading to inadequate control of the target pests and weed species.

The ability of herbicides to function properly relies not only on their active ingredients but also on how well they combine. Incompatibility can affect their effectiveness, stability, and the application's overall safety. Therefore, it’s crucial to conduct compatibility tests before mixing different herbicides, particularly if they are from different chemical groups or have varied properties.