MDARD Michigan Core Pesticide Applicator Practice Exam

How are liquid pesticides typically measured?

1. By weight

2. By volume

3. By density

4. By concentration

The correct answer is: By volume

Liquid pesticides are generally measured by volume because this allows for precise measurement of the amount of liquid product being used. Volume measurement is particularly practical for liquid formulations, as these pesticides are often applied in specific quantities per acre or in specific ratios when mixed with water or other carriers. Using volume measurements makes it easier to ensure accurate application rates, which is critical for both efficacy in pest control and minimizing environmental impact. Different devices, such as measuring cups, graduated cylinders, or flow meters, can facilitate accurate volume measurement for application. While weight, density, and concentration can be relevant in other contexts (for example, when dealing with solid formulations, calculating specific dilutions, or adjusting based on the density of a liquid), volume remains the standard and most practical measurement method for applying liquid pesticides in the field.