Michigan Right-of-Way Pest Management Practice Exam 2025 - Free Pest Management Practice Questions and Study Guide

The correct answer identifies mechanical and hydraulic agitators as the two commonly used types of agitators in spray tanks, which play a crucial role in ensuring that the mixture of pesticide and carrier is homogenous.

Mechanical agitators use physical means, such as paddles or a propeller, to stir the contents of the spray tank. This action prevents the settling of solids, ensuring that active ingredients remain evenly distributed throughout the solution. This is particularly important in pest management practices, where uniformity in the mixture can significantly affect the effectiveness of the spray application.

Hydraulic agitators, on the other hand, utilize the movement of liquid itself, usually pumped from the tank, to create turbulence and circulation within the tank. This method is often more effective in maintaining suspension of concentrated materials and is particularly useful for larger spray systems.

Understanding the role of both types of agitators is essential for optimizing spray mixing, preventing clogging, and ensuring the efficacy of pest control applications. Their operational principles help maintain the integrity of the formulation as it is prepared and applied in the field.