MDARD Michigan Core Pesticide Applicator Practice Exam

Which active ingredient type is commonly found in water-dispersible granules?

1. Aerosolized compounds

2. Granule-sized particles

3. Liquid solutions

4. Emulsifiable concentrates

The correct answer is: Granule-sized particles

Water-dispersible granules consist of active ingredients that are formulated as dry granules which can readily disperse in water to form a suspension. This formulation type allows for easier handling and storage compared to liquids while still enabling effective application when mixed with water. The granule-sized particles dissolve and release the active ingredient when they come in contact with water, making them effective for various agricultural and pest control applications. While aerosolized compounds refer to substances that are sprayed in a fine mist, liquid solutions involve active ingredients fully dissolved in a liquid carrier, and emulsifiable concentrates are liquid formulations designed to mix with water to form an emulsion, these options do not align with the characteristics of water-dispersible granules. The formulation specifically entails solid granules that dissolve and disperse in water, making the presence of granule-sized particles the defining feature.