A surfactant is a material that when added to a tank mix lowers the surface tension of the spray solution, improving wetting and coverage of the leaf surface.
Nonionic surfactant adjuvant formulations are engineered to spread the active ingredient throughout the canopy and to improve pesticide efficiency by increasing penetration, coverage and overall effectiveness of almost any herbicide. Nonionic surfactants break the surface tension of water, spreads the active ingredient and improves uniform coverage throughout the canopy.