Indiana Pesticide Applicator Core Practice Exam

What is an advantage of using wettable powders?

1. Low dermal hazards

2. Less likely to burn vegetation

3. Flow easily and low inhalation risk

4. No need for agitation

The correct answer is: Flow easily and low inhalation risk

Using wettable powders offers a significant advantage in that they flow easily and present a lower inhalation risk compared to other formulations. Wettable powders are designed to be mixed with water, creating a suspension that can be sprayed effectively. This formulation means that fewer dust particles are released into the air during preparation and application, reducing the likelihood of inhalation exposure for the applicator and anyone nearby. Additionally, wettable powders tend to settle in the tank, requiring some agitation to keep them evenly distributed; however, they generally do not require as frequent or intense agitation as some other formulations, such as emulsifiable concentrates. These characteristics contribute to a safer application process when compared to formulations that might release more airborne particles. While it's true that wettable powders can have low dermal hazards, be less likely to burn vegetation, and require agitation, these characteristics are not as defining as the emphasis on manageable flow and reduced inhalation risk, making that the standout advantage.