Bhagyashree Bhatt Pradeep Kumar


Eight fungicides, ten botanicals and ten essential oils were taken for their in vitro evaluation against Exserohilum turcicum (Pass.) Leonard and Suggs incited of Northern Leaf Blight of Maize. Among all the tested fungicides (Azoxystrobin 23%, Thiophenate methyl 75%, Propiconazole 25%, Tebuconazole 25.9%, Captan 50%, Zineb 75%, Cymoxanil 8%+Mancozeb 64% and Zineb 68%+Hexaconazole 4%), propiconazole 25% showed maximum inhibition of mycelial growth (92.22%) under in vitro conditions at 5ppm concentration. Among all the tested botanicals Heena (Lawsonia inermis) was found to be most effective in inhibiting mycelial growth (71.11%) at 10% concentration. Lemon tulsi oil was found best in inhibiting mycelial growth (71.30%) of Exserohilum turcicum, among all the tested essential oils at 50ppm concentration. Fungicides, plant extracts and essential oils showing good results under in vitro conditions were tested under glasshouse conditions. Foliar spray of Propiconazole 25%EC@0.1% showed reduced disease incidence (23.33%) compared to control (46.33%). Application of 5% of Heena extracts reduced the disease incidence (26.67%). Plants when sprayed with Lemon tulsi oil showed reduced disease incidence (24.17%). The study reveals that not only the fungicides but also the natural plant extracts can greatly contribute to reduce the incidence of disease because of the antifungal compounds present in plants. 




Exserohilum turcicum, maize, fungicides, plant extracts, essential oils

Carlos, D.L. (1997). Diseases of maize in south-east Asia relevance and management Abstract of the Symposium ‘Indian Phytopath. Soc. Golden Jubilee. International Conference on Integrated Plant Disease Management for Sustainable Agriculture, New Delhi, p. 22.
Chaudhary G., Goyal S. and Poonia P. (2010). Lawsonia inermis L.: a phytopharmacological review. International Journal of Pharmaceutial Sciences and Drug Resistance, 2(2) 91- 98.
Harlapur, S. I., Kulkarni, M.S., Wali, M.C and Srikant Kulkarni (2007). Evaluation of plant extracts, bio-agents and fungicides against Exserohilum turcicum (Pass) Leonard and Suggs. causing turcicum leaf blight of maize. Karnataka Journal of Agricultural Sciences, 20 (3): 541- 544.
Kachapur, M.R. and Hegde, RK. (1988). Studies on turcicum blight of maize (Zea mays L.) caused by Exserohilum turcicum (Pass.) Leonard & Suggs with special reference to crop loss assessment. Plant Pathology Newsletter, 6(1-2): 33-35.
Kishore, G. K., Pande, S., and Harish, S. (2007). Evaluation of essential oils and their components for broad-spectrum antifungal activity and control of late leaf spot and crown rot diseases in peanut. Plant Disease, 91:375-379.
Manu, T. G., Naik, B.G., Sayipratap, B.R. and Balagar. M.S. (2017). Identification of Sources of Resistance against turcicum leaf blight of maize. Chemical Science Review and Letters, 6(24): 2100-2107.
Muhammad H.S. and Muhammad S. (2005). The use of Lawsonia inermis L (henna) in the management of burn wound infections. African Journal of Biotecnology, 4, 934 -937.
Nene, Y.L. and Thapliyal, P.N. (1979). Fungicides in Plant Disease Control. Oxford and IBH Publishing House, New Delhi, pp 525-540.
Payak, M.M. and Sharma, R.C. (1983). Disease rating scales in maize in India. In : Techniques of Scoring for Resistance to Important Diseases of Maize. Indian Agricultural Research Institute, New Delhi, pp. 1-4.
Sethi, S., Prakassh, O., Chandra, M., Punetha, H. and Pant, A.K. (2013). Antifungal activity of essential oils of some Ocimum species collected from different locations of Uttrakhand. Indian Journal of Natural Products and Resources, 4(4):392-397.
Sharma,A . and Sharma, K. (2011). Assay of Antifungal Activity of Lawsonia inermis Linn. and Eucalyptus citriodora Hook. Journal of Pharmacy Research, 4(5):1313-1314.
Sharma, P., Khandelwal, S., Singh, T., and Vijayvergia, R. (2012). Phytochemical analysis and antifungal potential of Duranta erecta against some phytopatogenic fungi. International Journal of Pharmaceutical Sciences and Research, 3(8): 2686- 2689.
Smith, C. Wayne; Betrán, Javier; Runge, E. C. A. (2004). Corn: Origin, History, Technology, and Production. John Wiley and Sons. ISBN 978-0-471-41184-0
Vincent, J.M. (1927). Distortion of fungal hyphae in the presence of certain inhibitors. Nature 59: 850 (cf: Karnataka Journal of Agricultural Sciences 20(3): 541-544.
Wani, T.A., Ahmad, M. and Anwar, A. (2017). Evaluation of fungicides, bioagents and plant extracts against Exserohilum turcicum causing Turcicum leaf blight of Maize. International Journal of Current Microbiology and Applied Sciences. 6 (8): 2754-2762.
Wise, K. (2011). Diseases of corn: Northern corn leaf blight. Purdue University Extension Publication. Purdue University.
Research Articles

How to Cite

Bioefficacy of fungicides, plant extracts and essential oils against Exserohilum turcicum (Pass.) Leonard and Suggs causing Northern leaf blight of maize. (2019). Journal of Applied and Natural Science, 11(2), 257-262. https://doi.org/10.31018/jans.v11i2.2030