Abstract
Antifungal activities of five plant species (
Thymus vulgaris, Lavandula vera, Menta viridis, Rosmarinus officinalis
and
Cassia italic
) extracts were tested against
Rhizoctonia solani
using three different solvents (methanol, acetone and chloroform). Using linear growth technique, the percentages of growth inhibition caused by extracts were determined. The methanol extracts of all test plants were the most effective to inhibit the mycelial growth of test fungus. The percent of growth inhibition of
R. solani
was least affected by the chloroform extract. Whereas, at 8 % concentration, methanol extracts of
R. officinalis
and
T. vulgaris
caused complete (100 %) inhibition of
R. solani
growth. Similar results for
M. viridis
were attained only at 10 % concentration, compared to control treatment. The analysis of High performance liquid chromatography of five plants indicated that, the extraction with different solvents will lead to different types and concentrations of phenolic compounds.