Structural Pest Control Applicator Practice Exam

Should nozzle discharge rate and sprayer calibration be checked with clean water before adding pesticides?

1. True

2. False

The correct answer is: True

Checking the nozzle discharge rate and sprayer calibration with clean water before adding pesticides is an essential practice in pest control operations. This step ensures that the equipment is functioning properly and delivering the correct amount of spray solution. If the sprayer is miscalibrated, it could lead to either insufficient application or excessive application of pesticides, which can be harmful to the environment, non-target organisms, and can lead to ineffective pest control. Using clean water allows applicators to confirm that the system is working as intended without the risk of pesticide contamination. It also provides a safe testing medium that won’t introduce any harmful substances into the environment until the sprayer is confirmed to be operating correctly. By verifying the calibration with clean water, applicators can adjust for any issues before pesticides are introduced. This precautionary step helps ensure accurate and effective pest management interventions, protecting the applicator, public health, and the environment.