Spray Systems for Turfgrasses: Calibrating Sprayers and Mixing Pesticides

Abstract

The purpose of the sprayer is to accurately meter and distribute pesticides. Pesticides are packaged in concentrated form to facilitate handling. In order to uniformly distribute the active ingredient of the pesticide over the area sprayed, it must be diluted with a suitable carrier (in this case, water). The diluted pesticide must then be uniformly distributed in a manner that gives optimum coverage with minimal drift potential. This publication explains the components of the spray system and procedures for calibration.