Pesticide Applicator how-to

How to Calibrate a Backpack Sprayer

Calibration ensures the right rate.

Updated By the Career Education Institute Curriculum Team
Quick answer

Calibration ensures the right rate. In short: mark; fill; spray, then complete the remaining steps below.

Step by step

  1. Mark a test area.

  2. Fill with water.

  3. Spray the area at a steady pace.

  4. Measure water used.

  5. Calculate the rate per area.

  6. Adjust pace or nozzle.

Safety reminders for pesticide applicators

  • Wear the PPE the label requires
  • Mix and load in safe areas
  • Prevent drift and follow REIs
  • Store and dispose of products properly

Label · Signal word · PPE · REI · Drift · Calibration: see the full pesticide applicator glossary.

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