Activity of the Oil of Salvia officinalis L. against Botrytis cinerea

The action of Salvia officinalis L. essential oil, of its hydrocarbon and oxygenated fractions, and of its main components, α- and β-thujone, 1,8-cineole and camphor, were tested on a strain of Botrytis cinerea Pers. a chrysanthemum pathogen (Chrysanthemum morifolium Ramat) and compared with the action of two synthetic plant fungicides, iprodione and benomyl, on the same fungus. The essential oil, its oxygenated fraction and the camphor showed fungicidal activity in doses of 2.2, 1.85 and 1.75 g/L respectively. The hydrocarbon fraction, the α- and β-thujone and the 1,8-cineole had no significant effect on the test organism. Iprodione had only a fungistatic action and benomyl was unable to completely inhibit the growth of the fungus, even at maximum doses.