Utilization Of Essential Oil And Vegetable Extracts Of Salvia Officinalis L. In The Control Of Rot Sclerotinia In Lettuce

In the search of alternative methods for disease control in plants, the essential oil and vegetal extracts of Salvia officinalis appear as an option. In this study, it was evaluated in vitro and in vivo the effect of the essential oil and plant extracts (hydroethanol, ethanol and infusion) of Salvia officinalis with potential antifungal activity against the pathogen Sclerotinia sclerotiorum (Lib.) de Bary. The essential oil was tested in the concentrations of 0.01, 0.05, 0.1, 0.15 and 0.2%, and the extracts in the concentrations of 5, 10, 15 and 20%. In the in vitro tests, the essential oil inhibited the mycelial growth of the pathogen starting from the concentration of 0.15%. In vivo tests were performed in the concentration of 0.20%. The same did not occur with any of the extracts tested, having no inhibition of fungal growth. These results indicate the potential of salvia oil for the control of sclerotinia rot in lettuce.