Technological innovations in vineyard spraying: assessment of PWM technology and future prospects: This is a translation of an article originally written in French

The Institut Français de la Vigne et du Vin and INRAE have worked with the companies OPTIMA Concept and Berthoud to develop a high-precision digitally controlled sprayer that automatically adjusts the volume of spray delivered by each nozzle according to geo-referenced guidance maps. This paper describes the technical characteristics and performance of the solutions studied, and outlines the prospects for deploying these technologies in viticulture.