Repercussion of the phytosanitary treatments on various models of foliage management in a Cabernet Sauvignon Vineyard (I note).
This study is the first communication about the repercussion of several phytosanitary treatments in three different training systems, differently managed in foilage, in relation to the usual phytopatologies: botrytis, acid rot, grape mildew and oldium. Particular attention to residuals of the products supplied on the foilage and present in ground and wine is paid. The considered foilage management systems are among those more spread and effective ones for a good quality wine production for Cabernet Sauvignon variety (clone R5). 11. Cordon Spur of Conegliano (C.S.C); 12. Simple Free Espalier Curtain (S.C.S.L); 13. Lyra (Lyra). The phytosanitary interventions for the foilage management systems have been compared between the company's ordinary plan and one with various and numerous active principles. The CG-ECD with Multiresidual analysis has determined the active principles residuals in the ground and in the wines. The characteristics of the wines have been determined by physical- chemical analysis; their organoleptic quality has been valued by panels of producers, oenologists, consumers and restaurant staff. The results point out a difference among the trials for the different presence of residuals. The foilage management justifies the diversity of the analytical composition of the wines. There is a substantial uniformity of judgements for the organoleptic quality. In conclusion, in this prove the judgement on the economic quality highlights the uselessness of the use of more incisive and radical active principles.
Spera
G
G
Plant Pathology Research Institute, I-00156 Rome, Italy. g.spera@ispave.it
Moretti
S
S
Casadei
G
G
D001203:Ascomycota / Q000254:growth & development / Q000472:pathogenicity; D007558:Italy; D009181:Mycoses; D010935:Plant Diseases / Q000382:microbiology*; D018515:Plant Leaves / Q000382:microbiology*; D027843:Vitis / Q000254:growth & development / Q000382:microbiology; D014920:Wine / Q000382:microbiology* / Q000592:standards