The antifungal effect of crude medicinal plant extracts of 20 plants species was determined by in vitro study using water, ethanol and acetone as a solvent following poisoned food technique. It was found that all the plant extracts at 50% concentration were effective in reducing the mycelial growth of Fusarium oxysporum f. sp. Melongenae Mauto and Ishigami. Among the 20 plant extracts, in different solvents, higher inhibition was noticed in 4 plants extracts namely Adhatoda vasica, Jatropha curcas, Sapindus emarginatus and Vitex negundo. These plants were selected further for different concentrations of 10%, 20% 30% and 40%. Among them Adhatoda vasica at 40% alone recorded 100% inhibition and remaining three plants produced almost similar inhibitory effect. At the low concentration of 10% Vitex negundo had more inhibitory effect (82%), while Jatropha curcas extracts showed very low inhibition (25%). There were not many differences in the inhibition between the extract of Adhatoda vasica and Sapindus emarginatus. In vivo pot culture experiment employing water extract of six plant species showed an increase in the root and shoot length and fresh and dry weight of root and shoot with the consequent reduction in the disease symptoms of the egg plant.
Siva et al., N.
"Antifungal Effect of Leaf Extract of Some Medicinal Plants Against Fusarium Oxysporum Causing Wilt Disease of Solanum melogena L.,"
Ethnobotanical Leaflets: Vol. 2008
, Article 19.
Available at: http://opensiuc.lib.siu.edu/ebl/vol2008/iss1/19