Which pesticide formulation must be kept agitated after being mixed with water to prevent settling?

The correct answer is Suspension Concentrates, commonly referred to as SC. This type of pesticide formulation consists of solid particles suspended in a liquid, which allows for effective delivery of the active ingredient when applied. To maintain the even distribution of the active ingredient and ensure that it does not settle at the bottom of the mixing container, Suspension Concentrates require constant agitation.

When these formulations are not kept agitated, the solid particles can settle, leading to an uneven application and reduced effectiveness of the pesticide. This characteristic is crucial for pest control professionals to understand, as proper mixing and application ensure that the intended dosage reaches the target pests without significant residue or environmental impact.

On the other hand, Emulsifiable Concentrates (EC) do not need to be agitated continuously once mixed, as the oil and water components emulsify to form a stable mixture. Soluble Powders and Water Dispersible Granules also maintain their consistency in the solution without requiring continuous agitation after the initial mixing. Therefore, understanding the properties of Suspension Concentrates is essential for effective pest management practices.