Which liquid pesticide formulation may approach 100 percent active ingredient?

• A. Ultra low volume (ULV)
• B. Emulsifiable concentrate
• C. Wettable powder
• D. Water-based solution

Answer: (A)

In pesticide formulations, how much active ingredient is carried in the liquid matters a lot. Ultra-low-volume formulations are built to deliver very tiny volumes of spray while keeping a very high concentration of active ingredient. They’re designed to be nearly pure AI, with only a minimal amount of carrier or additives, so the active ingredient can approach 100 percent of what’s being applied.

Other liquid formulations include emulsifiable concentrates, which still contain a substantial solvent and emulsifier—so the AI percentage isn’t near 100 percent. Wettable powders are solids that must be dispersed in water, so the final spray contains mostly carrier and water rather than AI. Water-based solutions are largely water with AI dissolved in it, resulting in a relatively low AI fraction too. Therefore, ultra-low-volume formulations best fit the idea of approaching the full strength of the active ingredient.