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Proper application of pesticides and fertilizers is possible only with a sprayer or spreader that is accurately calibrated. When equipment is not correctly calibrated, it is easy to apply too much or too little of a chemical, which may result in the lack of pest control, damage to turf, wasted money, and/or contaminated environment. This publication explains how to calibrate boom sprayers and granular spreaders used on turfgrass.
Even the best herbicides will not provide effective weed control if they're not applied accurately and uniformly. This publication describes the steps required to calibrate hand-held spreaders commonly used in container nurseries.
For calibration to be successful, several items need to be taken care of before going to the field. Calibration will not be worthwhile if the equipment is not properly prepared. Calibration should be performed using water only. Follow the steps outlined below to prepare spraying equipment for calibration.
