Alternative au cuivre : Des pistes intéressantes - Bilan de 4 années de programme européen REPCO, 2004-2007
2009
GOMEZ, Christelle
As part of the European project REPCO on the search for alternatives to copper, products have been tested in arboriculture and organic viticulture in order to control the scab of the apple tree Venturia inaequalis and the mildew of the vine Plasmopara viticola. Natural defense stimulators, biological fungicides and biological control agents were selected and evaluated in the laboratory and in the field by the various partner organizations of the project. The Avignon GRAB was particularly involved in field trials to evaluate the efficacy of these alternative products on vine blight. These four years of study highlight the interest of some alternative products to copper. The elicitors, antagonists, biostimulants and biological fungicides are an interesting track with encouraging results. The reduction of copper doses, the association with alternative products and the strategic positioning of copper treatments could further reduce the quantities of copper used.
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