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A wettable powder (WP) is an insecticide or other pesticide formulation consisting of the
active ingredient An active ingredient is any ingredient that provides biologically active or other direct effect in the diagnosis, cure, mitigation, treatment, or prevention of disease or to affect the structure or any function of the body of humans or animals. The ...
in a finely ground state combined with wetting agents and sometimes bulking agents. Wettable powders are designed to be applied as a
dilute Dilution may refer to: * Reducing the concentration of a chemical * Serial dilution, a common way of going about this reduction of concentration * Homeopathic dilution * Dilution (equation), an equation to calculate the rate a gas dilutes * Trad ...
suspension Suspension or suspended may refer to: Science and engineering * Suspension (topology), in mathematics * Suspension (dynamical systems), in mathematics * Suspension of a ring, in mathematics * Suspension (chemistry), small solid particles suspen ...
through liquid spraying equipment. As wettable powders are not mixed with water until immediately before use, storing and transporting the products may be simplified as the weight and volume of the water is avoided. Wettable powders may be supplied in bulk or in measured
sachet A sachet is a small scented cloth bag filled with herbs, potpourri, or aromatic ingredients.Oster, p. 54 A sachet is also a small porous bag or packet containing a material intended to interact with its atmosphere; for example, desiccants ...
s made from water-soluble film to simplify premixing and reduce operator exposure to the product.


References

{{Reflist Pest control techniques Powders