What is the main characteristic of emulsifiable concentrates (EC/E)?

Emulsifiable concentrates, often referred to as EC or E, are specifically formulated products that usually contain a high percentage of active ingredients, typically ranging from 25% to 75%. This significant concentration of active ingredient is one of their defining characteristics. EC products are designed to be mixed with water, but they are not water-soluble by themselves. Instead, they require emulsifiers to help disperse the active ingredient evenly in the water, allowing for effective application as a pesticide.

The requirement for emulsifiers is critical because they enable the formulation to form a stable emulsion when added to water, which allows for the active ingredients to spread evenly over the targeted area. This emulsification process enhances the pesticide's effectiveness in controlling pests.

In contrast, options suggesting that emulsifiable concentrates are completely mixed before use or contain no active ingredients do not reflect the basic nature and functionality of these products. An understanding of their composition and the necessary emulsification process is essential for safe and effective pesticide application.