Why are polymers used in aquatic pesticides?

Polymers are utilized in aquatic pesticides primarily to thicken solutions and increase droplet size, which enhances the effectiveness of the pesticide application. When polymers are added, they help create a more viscous solution, which can assist in the even distribution of the pesticide in water. Larger droplet sizes are less prone to drift or evaporation, ensuring that a greater amount of the pesticide reaches the intended target area effectively.

This increased droplet size also helps with the adhesion of the pesticide to aquatic surfaces, allowing it to remain active longer in the environment where it is applied. In aquatic settings, this is particularly crucial, as the movement of water can quickly disperse smaller droplets, potentially reducing the pesticide's efficacy. Therefore, the role of polymers in thickening solutions and increasing droplet size is vital for ensuring the targeted delivery and sustained effectiveness of aquatic pesticides.