(Optional) Calibrate a sprayer.

Calibration should include

• determining the rate at which to apply pesticide
• determining the area of land which will be used to test the spraying equipment
• performing a test application using the calibration formula
• adjusting spraying equipment to correct the calibration.

Process/Skill Questions:

• Why would a farmer want to calibrate spraying equipment?
• What variables can affect the rate at which a pesticide is applied?
• Why should pesticide applicators always consider sprayer calibration?
• What effect does pressure have on calibration?
• What three variables determine application rates?