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Field evaluation of an expertise-based formal decision system for fungicide management of grapevine downy and powdery mildews

Authors
  • Deliere, L.
  • Cartolaro, Philippe
  • Léger, Bertrand
  • Naud, O.
Publication Date
Jan 01, 2015
Identifiers
DOI: 10.1002/ps.3917
PMID: 25264219
OAI: oai:HAL:hal-02601019v1
Source
HAL-Descartes
Keywords
Language
English
License
Unknown
External links

Abstract

BACKGROUND In France, viticulture accounts for 20% of the phytochemicals sprayed in agriculture, and 80% of grapevine pesticides target powdery and downy mildews. European policies promote pesticide use reduction, and new methods for low-input disease management are needed for viticulture. Here, we present the assessment, in France, of Mildium®, a new decision support system for the management of grapevine mildews. RESULTS A 4 year assessment trial of Mildium has been conducted in a network of 83 plots distributed across the French vineyards. In most vineyards, Mildium has proved to be successful at protecting the crop while reducing by 30–50% the number of treatments required when compared with grower practices. CONCLUSION The design of Mildium results from the formalisation of a common management of both powdery and downy mildews and eventually leads to a significant fungicide reduction at the plot scale. It could encourage stakeholders to design customised farm-scale and low-chemical-input decision support methods.

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