Structural Pest Control Applicator Practice Exam

What does the abbreviation D commonly refer to in pesticide formulations?

1. Degradable

2. Dust

3. Dangerous

4. Dispersible

The correct answer is: Dust

In pesticide formulations, the abbreviation "D" commonly stands for "Dust." Dust formulations are one of several forms in which pesticides can be applied, often characterized by the presence of solid particles that can easily drift in the air. Dusts are typically used for applications where a dry formulation is advantageous, such as in areas that need to target pests that hide in cracks and crevices or on surfaces that benefit from a persistent residual. The use of dust as a formulation allows for effective contact with pests, often enhancing the distribution of the active ingredient in the target environment. It's important to apply dusts correctly to avoid unnecessary drift and ensure that the pesticide reaches the intended surfaces. The other options refer to different concepts that are less common or relevant in the context of pesticide formulations. For instance, while "degradable" and "dangerous" pertain to the properties of substances, they do not specifically indicate a type of pesticide formulation. "Dispersible" could relate to a characteristic of some formulations, but it does not specifically denote a particular type like dust does.