Virginia Commercial Pesticide Applicators CORE Exam

What is one disadvantage of wettable powders (WPs)?

1. Can be easily measured

2. Inhalation hazard to applicators

3. High storage capability

4. Usually high residual activity

The correct answer is: Inhalation hazard to applicators

The correct answer highlights the inhalation hazard posed by wettable powders (WPs). Wettable powders are solid formulations that need to be mixed with water to create a suspension for application. When handling these powders, especially during the mixing process, there is a risk of inhaling fine particles. This inhalation hazard can pose significant health risks to applicators, as the particles can enter the respiratory system and potentially cause adverse effects. Inhalation risk is particularly relevant in the context of pesticide application, where safety precautions are crucial to ensure that applicators do not suffer from exposure. Protective equipment, such as masks or respirators, is often recommended when working with WPs to minimize this risk. Other factors mentioned, such as the ease of measurement, high storage capability, and usually high residual activity, do not contribute to the disadvantages of wettable powders. In fact, these attributes are often considered beneficial in terms of efficiency and effectiveness in pest control. Therefore, the inhalation hazard stands out as a significant concern that must be addressed by those who handle these types of pesticide formulations.