In Vitro Efficacy Of Fungicides And Bioagents Against Colletotrichum Capsici Causing Leaf Spot Of Turmeric

Anjali M. Wagatkar; K. A. Deshpande; G. K. Giri; M.S. Joshi

doi:10.48165/jpds.2022.1702.10

Authors

Anjali M. Wagatkar Department of Plant Pathology, Dr. PDKV, Akola-444104 (MS)
K. A. Deshpande Department of Plant Pathology, Dr. PDKV, Akola-444104 (MS)
G. K. Giri Department of Plant Pathology, Dr. PDKV, Akola-444104 (MS)
M.S. Joshi Department of Plant Pathology, Dr. PDKV, Akola-444104 (MS)

DOI:

https://doi.org/10.48165/jpds.2022.1702.10

Keywords:

Bioagents, Efficacy, Fungicides, Leaf spot, Turmeric

Abstract

Colletotrichum leaf spot is always regarded as a limiting factor for quantitative and qualitative losses of turmeric throughout the country. As a result, the current study on the efficacy of various fungicides and bio-agents against C. capsici under laboratory conditions was conducted to determine the most effective treatments. Using the poison food method, six different fungicides were tested in vitro against C. capsici. Among six fungicides tested, Tebuconazole 5.4 w/w FS, Carbendazim 12% + Mancozeb 63% WP, Azoxystrobin 18.2 w/w + Difenoconazole 11.4 w/w SC, Carboxin 37.5% + Thiram 37.5% DS inhibited 100% mycelial growth inhibition of C. capsici. The bio-agent was tested against C. capsici using the dual culture method. Trichoderma harzianum was found to be the most effective as a bioagent, with a maximum inhibition of mycelial growth of (68.66%) followed by T. asperellum with (68.36%), Pseudomonas fluroscens (64.29%) and Bacillus subtilis (60.24%).

References

Anonymous, 2021: Statistics of field crops. Gov. of Maharashtra. http://krishi.maharashtra.gov.in/site/ home/categorycontent.aspx.

Akhtar , J. and M. K. Singh, 2007: Studies on the variability in Colletotrichum capsici causing chilli anthracnose. Indian Phytopath., 60(1): 63-67.

Dennnis, K. L. and J. Webster, 1971: Antagonistic properties of species group of Trichoderma and hyaphal interaction. Trans. British Mycol. Soc., 57:363-396.

Ingle, Y.V., C.U.Patil, K. D. Thakur and Kalyani Ingle, 2014: Effect of fungicides and plant resistance activator on Colletotrichum leaf spot of soybean. The Bioscan, 9(3):1187-1190.

Maithani, Aditi, Laxmi Rawat and T.S. Bisht, 2021: Management of leaf spot disease of turmeric by using bioinoculants, liquid organic manure and chemical. Frontiers in Crop Improvement, 9:2016- 2022.

Nene, Y. L. and P. N. Thapliyal, 1993: Fungicides in Plant Disease Control. Second Edition Oxford & IBH Publishing, New Delhi.pp.531-532.

Ranasingh, N., S. K. Beura and R. Das, 2010: In vitro efficacy of fungicides against Colletotrichum capsici causing die-back and fruit rot of chilli. J. Mycopathol. Res., 48(2):379-382.

Rao, P.S, M. L. N. Reddy, T. G. W. Rao, M. R. Krishna and A. M. Rao, 1993: Reaction of turmeric cultivars to Colletotrichum leaf spot, Taphrina leaf blotch and Rhizome rot. J. Plant Crops, 20:131- 134.

Vincent, J. M. 1947. Distortation of fungal hyphae in presence of certain inhibitors. Nature, 15:850