PAKISTAN JOURNAL OF BOTANY, vol.47, no.4, pp.1575-1579, 2015 (SCI-Expanded)
The aim of this study was to investigate the In vitro efficacy of 96% alcohol extracts of Evernia prunastri and Pseudevernia fiirfitracea var. furfuracea that were in foliose-fruticose form and Parmelia sulcata in foliose form against important plant pathogens. The growth of fungal colonies in Petri plates amended with lichen extracts at 25 degrees C was measured a day before covering all surface of Petri plate in control treatment. Data were analysed according to statistic analysis test LSD at p <= 0.05. The in vitro efficacy of extracts of E. prunastri, P. sulcata and P. furfuracea var. furfuracea showed a significant inhibition against mycelia and spor growth of Aspergillits niger, Botrytis cinerea, Fusarium culmorum, F. solani, Macrophomina phaseolina, Penicillium expansum and Rhizoctonia solani. The level of inhibition among extracts showed variation. It was concluded that secondary metabolites of lichens may be used as biological chemicals against some plant pathogens.