Which pesticide formulations must be diluted before they are applied?

Wettable powders and emulsifiable concentrates are indeed formulations that require dilution before application. Wettable powders consist of fine particles that need to be mixed with water to create a suspension; this allows them to adhere effectively to surfaces and targets. Without proper dilution, the active ingredients may not be evenly distributed or could be ineffective in controlling pests.

Emulsifiable concentrates, meanwhile, are made up of a concentrated form of pesticide that must be mixed with an appropriate amount of liquid, often water or oil, to form an emulsion. This process helps to ensure that the pesticide becomes evenly distributed in the mixture, enhancing its efficacy during application.

Understanding the need for dilution is crucial in pest control applications because improper mixing can lead to ineffective pest management and potentially harmful residues. Other formulations, like granules and certain aerosols, may not require dilution and can be used as is, which distinguishes them from those that do need to be mixed prior to use.