Prepare for the Massachusetts Pesticide License Test. Study with detailed multiple-choice questions, complete with helpful hints and explanations. Excel on your exam!

Practice this question and more.


What is the function of a drift control additive?

  1. To enhance the color of the spray mixture

  2. To increase the volatility of pesticides

  3. To reduce drift during pesticide application

  4. To improve the adhesion of the pesticide

The correct answer is: To reduce drift during pesticide application

The primary function of a drift control additive is to reduce drift during pesticide application. Drift refers to the movement of pesticide particles away from the target area due to wind or other environmental conditions. Drift control additives are specifically formulated to modify the physical properties of the spray mixture, resulting in larger droplet sizes or more stable spray patterns. This minimizes the risk of off-target movement, ensuring that the pesticide is effectively applied where it is needed without impacting surrounding areas. The importance of reducing drift lies in both efficacy and safety; it ensures that the intended pests are effectively managed while also protecting non-target organisms, including beneficial insects, plants, and nearby water sources. By employing drift control additives, applicators can achieve more precise applications, reduce the likelihood of pesticide residues in unintended areas, and comply with regulatory requirements focused on environmental protection.