Which term describes a pesticide formulation with active ingredients dissolved in an oil solvent and an emulsifying agent to enable mixing with water?

• A. Emulsions
• B. Emulsifiable Concentrates
• C. Suspensions
• D. Fumigants

Answer: (B)

This item is about how pesticide formulations are designed to be diluted with water for spraying. An emulsifiable concentrate is a formulation in which the active ingredient is dissolved in an oil-based solvent and combined with an emulsifying agent. When you mix this concentrate with water, the emulsifier lets the oil phase disperse into tiny droplets, forming a stable emulsion that can be sprayed evenly.

This fits the description because the active is dissolved in an oil solvent and an emulsifier is present to enable mixing with water. Emulsions, by contrast, are mixtures of oil droplets in water that result after dilution, not the concentrated product itself. Suspensions involve solid particles dispersed in water, not dissolved actives, and fumigants are gases used for pest control.