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Un pulvérisateur de précision capable de réaliser des expérimentations de précision à l'échelle de la parcelle en viticulture

2025 · IFV · eng

A precision sprayer capable of whole-of-block precision experimentation in viticulture S. Codis1,2,*, X. Delpuech1,2, M. Lewis2,3, D. Bellone2,3, X. Ribeyrolles2,3, A. Vergès1,2 and O. Naud 2,3 1IFV French Wine and Vine Institute, Le Grau-du-Roi, France; * sebastien.codis@vignevin.com 2UMT EcoTech, IFV-INRAE-CTIFL, Montpellier, France 3ITAP, Univ Montpellier, INRAE, Institut Agro, Montpellier, France Abstract The French Wine and Vine Institute and INRAE have developed innovative methods to study the factors of plant protection product efficacy under real vineyard conditions, employing whole-of-block precision experimentation principles. From 2021 to 2023, a partnership with OPTIMA Concept ® and Berthoud® allowed to develop a high-precision sprayer tailored for the trials. Based on pulse width modulation technology (PWM), the sprayer is able to automatically and precisely control the dose of product applied per hectare, as well as its distribution on the plant, at any point in the plot. Results showed a 4% average error in volume application, rapid response time, and consistent spray quality. Keywords: biocontrol, PWM, spraying technology, variable rate application

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