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In vitro antifungal activity of selected indigenous plant extracts against Colletotrichum capsici

Research Paper | April 1, 2018

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Abdul Sattar, Abid Riaz, Inam-ul-Haq, Muhammad Kausar Nawaz Shah

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Int. J. Biosci.12( 4), 145-150, April 2018

DOI: http://dx.doi.org/10.12692/ijb/12.4.145-150


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Anthracnose of chilli caused by Colletotrichum capsici is a wide spread problem limiting the profitable cultivation of chilli throughout the major chilli growing regions of the Punjab, Pakistan. Presently chilli anthracnose is managed by using number of fungicides like Captan and Thiram which results in environmental damage and have human hazardous effects. An experiment on antifungal efficacy of five plant extracts viz., Polygonum (Polygonum amplexicaule), Neem (Azadirachta indica), Dodonaea (Dodonaea viscosa), Clove (Syzygium aromaticum) and Eucalyptus (Eucalyptus globulus) was done through poisoned food technique by setting three concentrations at0.05%, 0.1% and 0.2% in in vitro conditions against C. capsici. The results revealed significant antifungal activities of tested plant extracts at all applied concentrations. Polygonum gave 98.5% growth inhibition of my celial growth of tested pathogen at 0.2% concentration and found highly effective from all tested plant extracts as compared to control. Neem ranked second by showing 88.75% growth inhibition after Polygonum at 0.2% concentration. Eucalyptus and Dodonaea also showed significant growth inhibition percentage in ranges of 78.25-44% and 8.5-22.5% respectively. Clove was found least effective among the plant extracts and showed growth inhibition in ranges of 7-18% at all concentrations. Present study suggests that Polygonum and Neem could be tried for the eco-friendly management of the disease.


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