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Publication datasheet
Title:
Prove triennali volte a valutare l'efficacia anti peronosporica di prodotti di origine naturale alternativi al rame
Authors:
La Torre, A.; Spera, G.; Talocci, S.; Valori, R., Rosati S.
Year:
2010
Languages:
ITA, eng
Journal:
Italus Hortus
Kind of publication:
Elettronico
Location:
Firenze
Editor:
Societ? Orticola Italiana
Abstract in Italian:
Abstract in English:
The control of pathogenic fungi, especially downy mildew, represents the main problem in organic viticulture as only few fungicides, above all copper compounds, can be used. Because of problems of environmental impact due to use of copper, the Regulation EC n. 473/2002 fixed a ceiling on the use of its compounds. Three years field trials were carried out in organic vineyeard to test the effectiveness, against Plasmopara viticola (Berk. et Curt.) Berl. et De Toni, of alternative copper products able to replace or to reduce copper quantities used. Natural substances were tested alone or in association with low rate copper formulations. In a three-year period we tested the effectiveness of different formulations in condition of high, medium and low pressure of P. viticola. Both the copper compounds and the natural products were able to guarantee a satisfactory protection in condition of low and medium pressure of downy mildew. In 2004, because of high pressure of P. viticola, only the copper reference product performed an adequate protection while the alternative products did not show efficacy.

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