Abstract
Phytopathogenic fungi Botryodiplodia theobromae causes diseases such as dieback, blights, and root rot in a variety of different hosts in tropical and subtropical regions and it include guava, coconut, papaya and grapevine plants. It also cause stem end rot disease in mango fruits. A number of angiospermic taxa were evaluated for their antifungal activity. Among the selected plants essential oil of L. cubeba was found effective in controlling the growth of Botryodiplodia theobromae. The minimum inhibitory concentration (MIC) of the essential oil was recorded 100ppm. The oil was found to withstand high inoculums density. Plant extract were prepared in water, acetone, ethyl alcohol, petroleum ether, ethyl acetate and methanol. Plant extracts of Allamanda cathartica, Lawsonia inermis, Prunus persica and L. cubeba showed inhibitory effect on the B. theobromae. However, Leaf extract of L cubeba in all the solvent namely, water, acetone, ethyl alcohol, petroleum ether, ethyl acetate and methanol were found to have antifungal activity. The extract as well as oil of L. cubeba was also found fungi toxic against other fruit rotting fungi. An enhancement in the shelf life of mango fruits was recorded under in vivo trial after treating with aqueous extract and essential oil of L. cubeba.
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