Why should pesticide spray formulations that go into suspension not be left standing without agitation?

Pesticide spray formulations that are designed to go into suspension are formulated with solid particles mixed within a liquid. Over time, if these suspensions are left standing without agitation, the solid particles can settle at the bottom of the tank. This settling can create a layer of concentrated solids, which not only makes it difficult to obtain a consistent mixture but may also lead to application issues.

When the formulation settles and cakes in the bottom of the tank, it can cause clogs in the spraying equipment and lead to uneven application of the pesticide on the intended target. This inconsistency can reduce the overall efficacy of the herbicide, as an inadequate amount may reach the plants or weeds that need treatment. Therefore, regular agitation is crucial to maintain a uniform suspension, ensuring that the pesticide can be applied effectively and as intended.