When mixing pesticide formulations, which should be added last?

When mixing pesticide formulations, emulsifiable concentrates should be added last because they require proper agitation and dilution to form a stable emulsion. Adding them last helps ensure that they are evenly distributed throughout the mixture without clumping or settling, which can happen if they are introduced earlier when other substances are added. This practice is important for achieving effective pest control, as it promotes uniform application and maximizes the efficacy of the pesticide.

Water-soluble concentrates, wettable powders, and flowables can interact differently with each other and with emulsifiable concentrates. If emulsifiable concentrates are added too early, they may not mix thoroughly with the other components, leading to reduced effectiveness or potential chemical reactions. Therefore, the last addition of emulsifiable concentrates ensures that the final mixture is well-formed and ready for effective application.