The Strategy of Optimization for Combat the Black Rot of Vine (Guignardia bidwell), in the Ecoclimatice Conditions from Vineyard Târnave

  • Liliana TOMOIAGA Research Station for Viticulture and Enology Blaj
  • Maria COMSA Research Station for Viticulture and Enology Blaj
Keywords: grape vine, black rot, treatments


The black rot of the vine (Guignardia bidwelli) can be considered one of the most serious mycoses reported in the plantations of the Târnave vineyard. In years with heavy and prolonged rainfalls, the fungus can affect all green parts of the grape-vine, but the most damaging attack is directed on the grain (Tomoioagă, 2006). In case the disease is not adequately controlled, the harvest losses can range from 5% to 80%. This being an outbreak disease, the research focused on estimating the risk of infection and establishing a combat strategy, by linking all factors favorable to the attack: temperature, moisture, biological reserve, varietal susceptibility. The experiments took place in 2008-2009 in the experimental polygon of SCDVV Blaj, on the Fetească regală variety. Treatments were performed in two variants. In the first variant three treatments were applied.