Which pesticide formulation is more difficult to remove by laundering?

Emulsifiable concentrates are more difficult to remove by laundering because they contain oil-based components that allow the active ingredient to effectively penetrate fabric fibers. This characteristic makes it challenging to wash out the pesticide residues completely. The oil component can bind to the fibers, leading to a persistent presence of the pesticide even after several washes.

In comparison, other formulations like dusts, soluble powders, and wettable powders typically do not have the same oil-based characteristics. Dusts can be brushed off or rinsed away, while soluble powders dissolve in water, making them easier to wash out during laundering. Wettable powders can suspend in water, but they are generally less resilient than emulsifiable concentrates when it comes to adhering to fabrics. Therefore, emulsifiable concentrates represent a greater laundering challenge due to their formulation and the way they interact with textile materials.