Which pesticide formulation requires no further agitation once mixed with water?

The correct answer is emulsifiable concentrate (EC) because this formulation is designed to easily mix with water and remains stable once combined. When an EC is mixed with water, it forms a stable emulsion that does not separate, meaning that there is no need for further agitation to keep the active ingredients evenly distributed throughout the solution. This stability helps to ensure consistent application and effective pest control.

In contrast, wettable powders (WP) require agitation during mixing and often need to be stirred or shaken during application to prevent settling. Granules (G) are typically applied directly to the soil or onto plants without mixing them with water, and therefore do not fit the criteria of requiring no further agitation once mixed. Suspension concentrates (SC) also require consistent agitation to maintain the uniformity of the mixture, as they can settle over time if left undisturbed. Thus, the nature of the EC formulation allows it to remain homogenous without any additional mixing after the initial preparation, making it the best answer to the question.