The effect of different concentrations of leaf extracts of Calotropis procera and Datura metal on phyllosphere mycoflora of Pennisetum typhoides has been investigated. The preparation of 4,8 and 16% leaf extracts of aforesaid plants and their spraying on the foliage of P. typhoides was performed as described by Mishra and Kanaujia (1972). The spore germination of certain phyllosphere fungi, viz., Aspergillus flavipes Bainier & Sortory, A. fumigatus Fres., Cladosporim herbarum (Pers.) Link., Curvularia lunata (Walker) Boedijn, Fusarium sp., Mucor hiemalis Wehmer, Myrothecium roridum Tode, Penicillium sp. and Trichoderma viride Corda was tested separately in the different concentrations (4, 8, 16, 20 and 50%)of the same plant extracts in the cavity slides by hanging drop method. The extract above 4% concentration in both cases proved inhibitory for certain phyllosphere fungi. The inhibitory property of leaf extracts, however, differed with regard to certain fungal species. The leaf extract of D. metal proved to be more effective than that of C. procera. The spore germination of certain fungal species was considerably lowered in the extract of the both plant species.(PDF at Slideshare.net)
Cite this as- Kanaujia R.S. and Mishra R.R. (1978): Studies on phyllosphere fungi. I. Effect of foliar application of plant extracts. Bangladesh Journal of Botany. 7(2):13-19.
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