Who bears responsibility for drift during pesticide application?

• A. The grower
• B. The supplier
• C. The regulator
• D. The applicator

Answer: (D)

Drift happens when pesticide spray moves off the target area and potentially affects off-target sites. The person applying the pesticide is responsible for preventing this because they control how and when the product is applied. This means following the label exactly, choosing appropriate equipment and settings, and making decisions based on the conditions at the time of application. You must calibrate the sprayer so the correct rate is delivered, select the right nozzle and droplet size, set the proper boom height and pressure, and ensure the spray is directed at the target. Weather factors matter too—wind speed and direction, temperature, and stability of the air can influence drift, so applications should be avoided or adjusted if conditions raise drift risk. Using drift-reduction techniques and adjuvants when appropriate, and maintaining proper buffer zones, are part of the applicator’s responsibility. If drift occurs due to improper technique or failure to follow the label under the applicator’s watch, the applicator bears the responsibility. The grower, supplier, or regulator may have other roles, but the on-site control of drift rests with the person applying the pesticide.