What type of formulation covers either a liquid or dry pesticide particle with plastic?

• A. Microencapsulates
• B. Suspensions
• C. Emulsifiable concentrates (EC)
• D. Dusts (Dust)

Answer: (A)

Microencapsulation is a formulation approach where the pesticide particle, whether a liquid drop or a dry granule, is surrounded by a thin plastic shell to form microcapsules. That plastic coating protects the active ingredient and can control how and when it is released, which is especially useful for managing stability, residual activity, and handling. Because the shell is a polymer, this type of formulation can be applied to both liquid and dry forms, enabling a single technology to cover different physical states while providing release control and protection.

The other kinds described involve mixtures that don’t feature a plastic layer around each particle. Suspensions are simply solid particles dispersed in a liquid; emulsifiable concentrates are liquids that form emulsions in water; dusts are dry powders without a protective coating. None of these inherently provide a plastic-coated particle, which is why microencapsulation is the best fit.