What term describes the continuous mixing of the pesticide and the carrier in the spray tank?

• A. Agitation
• B. Filtration
• C. Sedimentation
• D. Centrifugation

Answer: (A)

Keeping the spray mixture uniformly blended as you apply is called agitation. The goal is to prevent solids from settling, clumping, or separating so the pesticide and carrier (water) stay evenly mixed from start to finish, ensuring a consistent dose and preventing nozzle clogs. In the tank, this is usually done with an agitator like a paddle or propeller that stirs and recirculates the liquid. Filtration removes solids from a liquid, not keep them mixed. Sedimentation is the process of solids settling out, which agitation is meant to prevent. Centrifugation uses rapid spinning to separate components, a method not used in typical field spray tanks. So, continuous mixing is agitation.