What is the primary function of a thickener in pesticide formulations?

The primary function of a thickener in pesticide formulations is to modify viscosity. This adjustment in viscosity is essential as it helps to achieve the desired flow characteristics of the formulation, ensuring that it can be applied effectively. Thickeners can prevent the formulation from being too runny, which might lead to uneven application or rapid runoff, thus promoting better adherence to the target surface.

By increasing the viscosity, thickeners also help in stabilizing the formulation, allowing for better suspension of active ingredients and reducing the risk of separation. A thicker formulation can enhance its performance and effectiveness, facilitating improved pest control.

While other options may touch on aspects of pesticide formulation, they do not directly pertain to the fundamental role of thickeners, which specifically relates to altering the physical properties of the pesticide mixture.