What is the only reliable way to determine how much chemical is being applied?

Accurate calibrating the sprayer is the only reliable method to determine the exact amount of chemical being applied. Calibration involves adjusting the sprayer's output settings to ensure that the specified application rate aligns with the manufacturer's recommendations. This process includes measuring the flow rate, adjusting nozzle sizes, and applying the chemical over a measured area to confirm that the application meets the required standards. By accurately calibrating the equipment, the applicator can achieve precision in the application process, which is essential for effectiveness and compliance with safety regulations.

While estimating based on appearance, referring to label information, and visual assessment of coverage may provide some insights, they do not offer the accuracy needed for optimal chemical application. Appearance can be subjective and may not reflect true application rates, label information provides guidelines but not direct measurements, and visual assessments are often influenced by environmental factors and do not quantify the actual volume being applied. Therefore, calibration stands out as the most reliable method for determining the amount of chemical used in the field.