Proper calibration and equipment maintenance are essential for safe, accurate, and effective pesticide and fertilizer applications. This session will cover the operation, calibration, and maintenance of low-volume spreader and sprayer systems, including how to calculate and verify application rates, understand the difference between application rate and chemical rate, and achieve consistent spray coverage. Attendees will also learn how to identify and troubleshoot common equipment issues, including irregular spray patterns, pressure loss, speed-calibration errors, and inconsistent product distribution. The session will also explore newer technologies designed to improve application accuracy, efficiency, and overall performance. Approved for 1 Connecticut pesticide recertification credit in all categories.