What is created when an active ingredient is enclosed in tiny polymer capsules that release pesticides over time?

When an active ingredient is enclosed in tiny polymer capsules that release pesticides over time, this process is referred to as microencapsulation. This technology is designed to enhance the delivery and effectiveness of pesticides by controlling the release rate. The encapsulation protects the active ingredient from environmental factors, allows for a sustained release over time, and can improve safety by reducing exposure.

In contrast, a wettable powder is a type of formulation that is mixed with water to create a suspension for application but does not involve encapsulation. A power sprayer is a device used for applying pesticides but does not relate to the formulation of the pesticide itself. An organic vapor respirator is a safety device designed to protect users from inhaling harmful vapors during pesticide application, again unrelated to the encapsulation of the active ingredient. Thus, the correct identification of microencapsulated pesticide highlights its unique formulation characteristics and application advantages.