QAL Laws & Regulation Practice Exam

Which type of liquid pesticide formulation potentially contains up to 100 percent active ingredient?

1. Emulsifiable concentrate

2. Suspension concentrate

3. Ultra Low Volume (ULV)

4. Water-soluble powder

The correct answer is: Ultra Low Volume (ULV)

The correct answer is Ultra Low Volume (ULV) formulations, which can indeed contain a very high percentage of active ingredient, often ranging from 80 to nearly 100 percent. ULV formulations are designed for use in applications where a minimal amount of total liquid is used, allowing for the highly concentrated pesticide to be applied effectively while minimizing dilution with solvents or carriers. This concentration allows for targeted applications where the active ingredient needs to be delivered in a potent form to achieve the desired efficacy in pest control. In contrast, emulsifiable concentrates, suspension concentrates, and water-soluble powders typically have lower concentrations of active ingredients mixed with other substances such as solvents, surfactants, or inert ingredients to create a product that is easier to handle, transport, and apply. Emulsifiable concentrates usually contain active substances with emulsifiers, making them suitable for mixing with water, but they do not reach the same concentration levels as ULV formulations. Suspension concentrates are mixed with water and include particles that are suspended but not dissolved, maintaining a lower active ingredient percentage due to the presence of other compounds. Water-soluble powders dissolve in water but typically do not concentrate the active ingredients to the same extent as ULV formulations. Thus, the ULV type distinctly stands out due