Pest Control Technician Practice Exam

What effect does an increase in pressure have on droplet size during pesticide application?

1. Increases droplet size

2. Decreases droplet size

3. No effect on droplet size

4. Causes droplets to evaporate immediately

The correct answer is: Decreases droplet size

When pressure increases during pesticide application, it leads to a decrease in droplet size. This phenomenon occurs because the higher pressure forces the pesticide solution through the nozzle at a faster rate, breaking the liquid into smaller droplets as it exits. The smaller droplet size is advantageous in many applications, as it can enhance the distribution of the pesticide over the target area, allowing for better coverage and potentially improving efficacy. Understanding this relationship between pressure and droplet size is crucial for pest control technicians. It helps in adjusting spray equipment and techniques based on the desired outcome, ensuring that the pesticide is effectively delivered while minimizing drift and waste. For effective pest management, knowing how to control droplet sizes through pressure adjustments can significantly impact the performance of the pesticide application.