Eco-friendly Management of Colletotrichum capsici (Syd.) Butler and Bisby - The Incitant of Anthracnose of Chilli

Author: Prashant Padghan, Bholanath Mondal and Rajendra Gade

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Abstract

Aiming to develop more efficient and environmental friendly methods than existing one to manage Colletotrichum capsici, which causes anthracnose of chilli. The study investigate to search appropriate natural management by using some organic materials against anthracnose (Colletotrichum capsici) of chilli. The bioagents viz. Trichoderma spp, Bacillus spp and Pseudomonas spp were found effective against test pathogen. Among them, Trichoderma hamatum was found most effective and recorded highest percent mycelial inhibition (77.03 %) followed by T. koningii, (74.07 %), T. harzianum (67.77 %), T. asperellum (60.74 %) and Bacillus subtilis (59.63 %). The least mycelial growth of the fungus is recorded in Pseudomonas fluorescens (50.00 %) respectively. The plant extracts viz., Neem, Tulsi, Marigold, Parthenium, Drumstick and Lantana (each @ 5 and 10%) and essential oils viz., Neem, Lemon grass, Thyme, Winter green, Eucalyptus and Cinnamon oil (each @ 0.1 and 0.05 %) were evaluated against the C. capsici. The result revealed that, essential oils viz., Thyme oil, Eucalyptus oil, lemon grass oil (each @ 0.05 and 0.1 %) and Cinnamon oil at 0.1 % concentration was highly effective as cent percent inhibition was achieved followed by Cinnamon oil (88.51 %), neem oil (55.55 %), Winter green oil (66.66 %) with the maximum percent mycelial growth inhibition over the untreated control. The plant extract of Neem was found to be effective and showed growth inhibition percent at 10 and 5 percent conc. was 40.00 and 32.97 percent respectively, followed by Tulsi with growth inhibition percent 27.41 and 21.48 at 10 and 5 percent conc. respectively. The minimum growth inhibition was recorded in case of the Lantana with 14.08 and 21.11 percent at 5 and 10 percent conc. respectively. So, organic management might be a better option to control anthracnose of Chilli and also having environment friendly.

Keywords

Chilli anthracnose, Colletotrichum capsici, Ecofriendly management, Essential oils, Plant extract, Bioagent

Conclusion

From present study, it was concluded that the sternness of anthracnose of chilli disease can significantly be reduced by the use of bioagents, Trichoderma hamatum was found most effective and recorded highest percent mycelial inhibition. The result revealed that, essential oils viz., Thyme oil, Eucalyptus oil, lemon grass oil (each @ 0.05 and 0.1 %) and Cinnamon oil at 0.1 % concentration was highly effective and also the plant extract of Neem was found to be effective against the pathogen. Recently there has been great interest in essential oils and biocontrol agents for controlling plant pathogens. Now the study shows that botanicals possess antifungal activity and can be exploited for effective management of plant diseases.

References

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How to cite this article

Prashant Padghan, Bholanath Mondal and Rajendra Gade (2023). Eco-friendly Management of Colletotrichum capsici (Syd.) Butler and Bisby - The Incitant of Anthracnose of Chilli. Biological Forum – An International Journal, 15(9): 902-907.