The Raven spray controller has brought major improvements to orchard spraying. Courtesy Blueline Equipment A major breakthrough in orchard spray technology in the last decade has been a rate control system that automatically calibrates sprayers during spraying, saving countless gallons of crop protection chemicals. Future spray technologies could include sprayers that are site specific, sense and adjust for canopy density, or are fixed systems that eliminate tractor-pulled spray rigs. Gwen Hoheisel, Washington State University Extension educator and leader of a spray application research project funded by the Specialty Crop Research Initiative, said that the Raven rate control system was “the […]