Structural Pest Control Applicator Practice Exam

What formulation would you choose if you wanted little visible residue and only moderate agitation?

1. Aerosol

2. Emulsifiable concentrate

3. Wettable powder

4. Granular

The correct answer is: Emulsifiable concentrate

Choosing an emulsifiable concentrate as the formulation offers several advantages that align with the criteria of having little visible residue and requiring only moderate agitation. Emulsifiable concentrates are liquid formulations that, when mixed with water, create a stable emulsion. This type of formulation leaves minimal visible residue after application, which is ideal for maintaining aesthetics in residential or commercial areas. Additionally, emulsifiable concentrates can be effectively mixed with moderate agitation. Their composition allows for easy dispersion in water without the need for excessive stirring or shaking, making them user-friendly in various application settings. This contrasts with other formulations; for instance, wettable powders often require vigorous agitation to keep them suspended properly in the solution, and granular formulations are typically less suited for applications where minimal residue is desired. Hence, for applications that prioritize a clean appearance post-treatment while also being convenient to mix and apply, emulsifiable concentrates are the optimal choice.