Volatile metabolites from new cultivars of catnip and oregano as potential antibacterial and insect repellent agents.

An interesting trend observed for both catnip and oregano was a reduction, with varying degrees of intensity, in the zones of inhibition of wells filled with the pure (100%) essential oils, in comparison to diluted essential oils, mainly at 20 and 40% concentrations, for both P. syringae and P. cichorii , but not for X. perforans , when the pure essential oils performed similarly or better than when diluted.

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