Which type of formulation is known for its long-lasting effect due to gradual release of pesticide?

The microencapsulated formulation is recognized for its long-lasting effect primarily because it involves encapsulating pesticide molecules within a polymer or a resin. This process creates tiny capsules that protect the pesticide from environmental degradation and enables a controlled release over time. The gradual release mechanism allows for a sustained presence of the active ingredient, thereby prolonging the effectiveness of the pesticide. This is particularly beneficial in pest control as it reduces the frequency of application required and provides more consistent pest management while minimizing environmental impact.

Other formulations, like gels, aerosols, and pellets, tend to have different release characteristics. For instance, gels may provide a localized and immediate effect but do not necessarily offer the same extended duration of action as microencapsulation. Aerosols are designed for quick application and often release their contents rapidly, which limits their long-lasting effects. Pellets can have a slow-release property but generally do not have the same precision in controlling the release rate as microencapsulated formulations. Thus, microencapsulation stands out for its ability to gradually release pesticide, emphasizing its longevity and effectiveness in various applications.