Which pesticide formulation is soluble in an organic solvent but not in water?

The selection of Emulsifiable Concentrate (EC) as the correct formulation is based on its unique properties in pesticide application. EC formulations consist of an active ingredient that is made soluble in an organic solvent, while they contain emulsifiers to help create a stable dispersion when mixed with water. As a result, they easily mix with oils and are primarily used when targeting pests that are more likely encountered in oily or organic solvent environments.

This characteristic makes EC particularly effective for certain applications, as it allows for better penetration into plant tissues and effective control of a variety of pests. In contrast, other formulations, such as Water Soluble Concentrates, are designed to dissolve in water, while Wettable Powders and Dry Flowables require water for dispersion but do not dissolve in it. Thus, the properties of EC align perfectly with the question's criteria for being soluble in organic solvents and insoluble in water.