What action is necessary to keep a pesticide evenly mixed in a tank solution?

To maintain an even mixture of pesticide in a tank solution, agitation is necessary. Agitation involves stirring or mixing the solution to ensure that all components, including the active ingredients, emulsifiers, and water, are uniformly distributed throughout the tank. This process helps prevent separation, which can occur when pesticides settle or rise to the surface due to differences in density or viscosity.

Heating and cooling may affect the solubility and application characteristics of the pesticide, but they are not primary methods for maintaining a consistent mixture. Filtration may remove unwanted particles, but it does not ensure that the pesticide remains mixed. Thus, consistent agitation is essential for achieving an effective and homogeneous pesticide solution, ensuring proper application and efficacy.