Why calibrate?

• A. Avoid over/under application
• B. Increase noise
• C. Prolong dry season
• D. Turn off wind indicators

Answer: (A)

Calibrating is about making sure the spray output matches the amount you intend to apply per area. By measuring how much material is dispensed over a known area and adjusting nozzle setup, pressure, and your speed, you ensure the actual application aligns with the label rate and your pest-management plan. This prevents waste and crop injury from overapplication, and it also avoids ineffective underapplication that lets pests persist and can drive resistance. Calibration also promotes uniform coverage and reduces drift. The other options don’t relate to applying the right amount: increasing noise, prolonging the dry season, or turning off wind indicators don’t address getting the correct rate onto the target area.