Evaluation of the Antifungal Efficacy of Plant Extracts, Essential Oils and Cow Urine on Curvularia lunata, the causal Organism of Maize Leaf Spot

Author: Divya Bhatt, P.K. Gupta and Ruchi Tripathi*

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Abstract

Studies were carried out to assess the efficacy of botanicals, essential oils and cow urine at different concentrations against Curvularia lunata, causal pathogen of maize leaf spot. Maize being the third most important crop in India after rice and wheat, is cultivated throughout the year in different parts of the country for diverse purposes thereby making it a crop of economic significance. The crop is being affected by an array of pathogens majorly being managed by the chemicals. Adding on to the burden of the environment, the chemicals used also act as pollutant and can also be subsided by the pathogen by developing resistant races. Botanicals on the other hand provide an ecofriendly method of the plant disease management. Amongst the botanicals, Zingiber officinale was found most successful at 20% for inhibiting the growth (71.85%) of the fungus which was at par with Zingiber officinale at 15% (66.67%) followed by Curcuma longa at 20% (60.01 %). Among the essential oils, highest i

Keywords

Botanicals; Curvularia lunata; essential oils; leaf spot; maize; cow urine; screening; in-vitro.

Conclusion

The findings of the study revealed that evaluation of essential oils, botanicals and cow urine in vitro conditions, against the test pathogen was done for better understanding of the host pathogen relationship. The salient findings of the investigations were that amongst the different essential oils screened against the growth of C. lunata 28±1°C it was found that E. globulus oil gave better results at all the concentrations evaluated as compared to other essential oils as highest inhibition (87.41%) was found in E. globulus oil at 500 ppm which was at par with same oil at 250 ppm. Whereas in case of different botanicals evaluated at different concentrations viz; 5, 10, 15 and 20%, it was found that Z. officinale was most effective at 20% for inhibiting the growth (71.85%) of the fungus which was at par with Z. officinale at 15% (66.67%) followed by C. longa at 20% (60.01 %). Similarly, cow urine was also evaluated at different concentrations viz; 1, 5, 10, 20, 30, 40 and 50 per c

References

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How to cite this article

Divya Bhatt, P. K. Gupta and Ruchi Tripathi (2022). Evaluation of the Antifungal Efficacy of Plant Extracts, Essential Oils and Cow Urine on Curvularia lunata, the causal Organism of Maize Leaf Spot. Biological Forum – An International Journal, 14(1): 2