What is the purpose of calibrating spray equipment?

• A. To maximize speed of application
• B. To reduce equipment weight
• C. To change the label's recommended mix
• D. To ensure the correct rate and uniform coverage across the target area

Answer: (D)

Calibrating spray equipment ensures you apply the right amount of product and cover the area evenly. By measuring how much spray comes out per unit of time, and knowing your travel speed and swath width, you set the system so the application rate matches the label, and every part of the turf receives similar coverage. This improves treatment efficacy, reduces waste and environmental impact, and minimizes the risk of leaf burn or pest resistance from under- or over-application. The other options miss the point: simply going faster doesn’t guarantee the correct rate or uniform spread, making the equipment lighter doesn’t affect how much product is delivered, and changing the label’s recommended mix isn’t the purpose of calibration.