Which type of pesticide formulation requires minimal agitation in the spray tank?

Water-soluble concentrates are designed to dissolve completely in water, creating a solution that stays uniform throughout the mixture. This formulation type generally requires minimal agitation in the spray tank because once dissolved, they do not settle out or separate. Therefore, there is no significant need for continuous mixing to keep the product evenly distributed in the tank, making the application process more efficient and straightforward.

In contrast, dry flowables and flowables tend to have particles that can settle out of solution, requiring more agitation to keep the formulation evenly dispersed. Granules are typically used in a granular form and may not require agitation at all, but they are not a liquid formulation and wouldn’t be mixed in a spray tank in the same manner. Thus, while granules may not need agitation in a spray application, they do not fit the context of the question as smoothly as water-soluble concentrates do in terms of minimizing agitation needs in a liquid spray tank.