In vitro Evaluation of Plant Extracts and Fungicides against Colletotrichum capsici causing Anthracnose Disease of Chilli

Author: Aman Chauhan and Vijay Kumar Yadav

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Abstract

Anthracnose disease of chilli is one of the major disease of chilli and responsible for causing pre-harvest and post-harvest losses to the produce. Limited availability of the resistant cultivars make the farmers to rely on fungicidal use to control the disease. The present investigation was carried out with an aim to develop some eco-friendly control measures and judicious use of fertilizers. Eight plant extracts viz. garlic (Allium sativum), marigold (Tagetes sp.), neem (Azadirachta indica), ginger (Zingiber officinale), milk weed (Calotropis sp.), ashwagandha (Withania somnifera), lantana (Lantana camara) and tulsi (Ocimum tenuiflorum) were evaluated by poisoned food technique at three different concentrations (5, 10, 20 per cent). Also, eight fungicides viz. Difenoconazole, Azoxystrobin, Propiconazole, Copper Oxychloride, Hexaconazole, Mancozeb, Carbendazime + Mancozeb and Pyraclostrobin + Epoxiconazole were evaluated under in vitro conditions at four concentrations (10, 25, 50, 100 ppm). Among all plant extracts neem at 20% was found to be the most effective with maximum growth inhibition (43.37%). Among fungicides Propiconazole and Pyraclostrobin + Epoxiconazole at 100ppm showed the maximum per cent growth inhibition of 100 per cent followed by Difenoconazole with growth inhibition of 87.08 per cent.

Keywords

C. capsici, dual culture, botanicals, fungicides

Conclusion

Among eight selected fungicides Propiconazole 25% EC was found to be the most effective showing complete inhibition in the mycelia growth of C. capsici. Neem leaf extract at 20 % concentration under in vitro condition was found very promising in inhibiting the growth of pathogen as it caused 43.37 per cent growth inhibition of C. capsici.

References

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How to cite this article

Aman Chauhan and Vijay Kumar Yadav (2022). In vitro Evaluation of Plant Extracts and Fungicides against Colletotrichum capsici causing Anthracnose Disease of Chilli. Biological Forum – An International Journal, 14(4): 720-725.