DPR QAL Practice Test 2025 – Complete Exam Preparation

Pesticide drift is most likely to occur under conditions of high winds, temperature inversions, or when improper application techniques are utilized. High winds can carry pesticide droplets away from the intended target area, significantly increasing the risk of impacting non-target areas. Temperature inversions create a stable atmospheric condition where cooler air is trapped close to the ground, allowing pesticide particles to remain suspended and travel longer distances instead of dissipating quickly. Improper application techniques, such as using the wrong nozzle type or spray pressure, can result in larger droplets that do not penetrate the target area effectively and are more susceptible to being carried away by the wind. Therefore, this answer correctly identifies multiple environmental and procedural factors that contribute to the occurrence of pesticide drift.