Wettable Powder (WP) is a powdered pesticide formulation that is mixed with water to form a suspension prior to spraying.
WP formulations contain one or more active ingredients blended with inert carriers, diluents, and surfactants. Wetting agents are included to facilitate the dispersion of particles in water. Dispersants are added to prevent flocculation of the mixture before use, ensuring that the particles remain uniformly dispersed throughout the spraying process.

Water Dispersible Granules (WDG), also referred to as WG or DG, are granular pesticide formulations designed to disperse in water. WDG products consist of solid, dry, free‑flowing granules—typically small cylindrical or irregularly shaped particles—with virtually no dust compared to powders. When added to water, the granules rapidly disintegrate into very fine particles (sometimes as small as a human hair in diameter), forming a suspension similar to that of a wettable powder. The user must shake or stir the mixture to ensure complete dispersion and to maintain the particles uniformly suspended throughout application.