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C. Ngullie L. Daiho N. K. Adhikary Tiaienla Bendangsenla

Abstract

Cabbage (Brassica oleracea var. capitata L.) is a major cole crop in India. Cabbage leaf blight caused by Alternaria sp. is one of the serious foliar diseases responsible for low production and productivity. The disease is challenging to manage alone with fungicides or bioagents. Hence, the present study was undertaken to manage the disease effectively by utilizing bioagents, fungicides, and their combinations. The field trial was carried out in the Horticultural Research Farm, School of Agricultural Sciences, Nagaland University, Medziphema, Nagaland, during Rabi, 2022-2023 and in vitro evaluation of fungicides and bioagents conducted in the Department of Plant Pathology, School of Agricultural Sciences, Nagaland University, Medziphema, Nagaland. Management of leaf blight of cabbage was conducted with seven treatments (T1-T7). Among the different treatments tested in field condition, the minimum severity of Alternaria leaf blight (37.69%) coupled with maximum yield (23.39 t/ha) with a higher-cost benefit ratio of 2.72 were recorded in T6 (seed treatment with captan @ 3 g/kg + four foliar sprays of azoxystrobin 4.8% + chlorothalonil @ 0.25%). Among the six treatments, In vitro evaluation of bioagents Trichoderma sp. (TTV-2; T5) showed maximum inhibition with 69.44%, followed by Bacillus subtilis (CRB-7; T6) with 31.11% inhibition and among the chemical fungicides, azoxystrobin (amistar) showed the highest inhibition of 76.67% as compared to control. These treatments can effectively manage cabbage leaf blight disease and ensure sustained yields, particularly in the foothills of Nagaland.


 

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Keywords

Alternaria leaf blight, Cabbage, Disease management, Percent disease index

References
Abdel-Farida, I. B., Jahangira, M., Van den Hondelc, C. A. M. J. J., Kima, H. K., Choi, Y. H. & Verpoorte, R. (2009). Fungal infection-induced metabolites in Brassica rapa. Plant Sci., 176, 608-615.
Adhikary, N. K., Dey, S. & Tarafdar, J. (2013). Studies on morphology of mango anthracnose disease causing fungus Colletotrichum gloeosporioides (penz.) penz. and sacc. and efficacy of azoxystrobin against the fungus under in vitro and in vivo condition. The Bioscan. 8(2), 493-497.
Chand, G. & Chandra, K. K. (2014). Symptomological, cultural and molecular variability of Alternaria brassicicola leaf spot in broccoli (Brassica oleracea var. italica L.). Int. J. Pharm. Bio Sci., l5 (2), 680-688.
Changkiri, M., Adhikary, N. K., Jha, A. & Kanaujia, S. P. (2024). Integrated Nutrient Management of French Bean (Phaseolus vulgaris L.) in Subtropical Humid Zone of Nagaland, India. Legume Res., 47(5), 845-849.
Conn, K. L., Tewari, J. P. and Awasthi, R. P. (1990). Disease assessment key for Alternaria black spot in rapeseed and mustard. Can. Plant Dis. Surv., 70, 19-22.
DoAFW (2023). Area and Production of Horticulture crops for 2021-22 (3rd Advance Estimates). Department of Agriculture & Farmers Welfare, Ministry of Agriculture & Farmers Welfare, Government of India. (Available: http:// https://agricoop.nic.in/).
Ekabote, S. D., Divyajyothi, U., Narayanaswamy, P. & Ravindra, H. (2019). Effect of azoxystrobin 4.8% w/w + chlorothalonil 40% w/w SC (Amistar opti 560 w/v SC) on watermelon against downy mildew and leaf spot. J. Pharmacogn. Phytochem., 8(1), 1676-1679.
FAO (2023). FAOSTAT Statistical Database 2021. Food and Agricultural Organization of the United Nations, Rome. (Available: http://www.fao.org/faostat/en/#data).
Glory, R. C., S. Rao, N., Vijaya Lakshmi, T., Padma, E. & Venugopalan, R. (2022). Efficacy of fungicides and bio agents in managing the black leaf spot disease of cabbage caused by Alternaria brassicicola. Biol. Forum. 14(3), 948-954.
Gunda, V. N. S. Madhu, K., Thara, S. S. & Brinda, G. B. (2018). Survey, pathogenicity, cultural and morphological characterisation of Alternaria isolates associated with Alternaria leaf spot of cabbage. J. Pharmacogn. Phytochem., 7 (5), 2281-2286.
Hossain, M. S. & Mian, I. H. (2004). Effect of foliar fungicides on the control of Alternaria blight of Cabbage seed crop. Bangladesh J. Plant Pathol., 20 (1/2), 43-48.
Kiran, G. V. N. S. M., Thara, S. S. & Brinda, G. B. (2018). In vitro efficacy of fungicides against Alternaria brassicicola causing Alternaria leaf spot of cabbage. Int. J. Curr. Microbiol. Appl. Sci., 7(4), 1131-1135.
Kolte, S. J. (1985). Diseases of Annual Edible Oilseed Crops Vol. II. Rapeseed mustard and sesamum diseases. CRC Press, Boca Raton, Florida, USA. pp. 135.
Kumar, R. & Shete, P. (2021). Symptomology, biology and management of Alternaria leaf spot of mustard (Brassica spp.). J. Pharm. Innov., 10 (6), 264-268.
Marchande, N. A., Bhagwat, R. G., Khanvilkar, M. H., Bhagwat, S. R., Desai, S. D., Phondekar, U. R. & Bhave, S. G. (2020). In vitro evaluation of bioagents against Alternaria alternata causing Alternaria leaf blight disease of marigold. J. Pharm. Innov., 9 (1), 348-350.
Mazur, S., Nawrocki, J. & Kucmierz, J. (2002). Control of fungi infecting seeds of chickpea. Prog. Plant Prot., 42(2), 829-831.
McKinney, H. H. (1923). Influence of soil temperature and moisture on infection of wheat seedling by Helminthosporium sativum. J. Agric. Res., 26, 195-217.
Meena, P. D., Awasthi, R. P., Chattopadhyay, C., Kolte, S. J. & Kumar, A. (2010). Alternaria blight chronic disease in rapeseed-mustard. J. Oilseed., 1(1), 1-11.
Mohammad, Q., Muhammad, I. K. & Muhammad, S. (2016). Comparison of poison food technique and drench method for in vitro control of Alternaria Sp., the cause of leaf spot of bitter gourd. J. Agric. Sci. Soil Sci., 4, 126-130.
Panse, V. G. & Sukhatme, P. V. (1985). Statistical Methods for Agricultural Workers, Indian Council of Agricultural Research, New Delhi, India.
Patel, A., Chandra, R. & Upadhyay, M. (2018). Efficacy of different fungicides against Alternaria brassicae caused Alternaria leaf spot of cauliflower. J. Pharm. Innov., 7 (12), 231-234.
Saharan, G. S., Naresh, M. & Meena, P. D. (2016). Disease forewarning and management of Alternaria blight of crucifers-A Review. J. Mycol. Plant Pathol., 46 (3), 193-223.
Siciliano, I., Gilardi, G., Ortu, G., Gisi, U., Gullino, M. L. & Garibaldi, A. (2017). Identification and characterization of Alternaria species causing leaf spot on cabbage, cauliflower, wild and cultivated rocket by using molecular and morphological features and mycotoxin production. Eur. J. Plant Pathol., 149(2), 401-413.
Singh, M., Singh, H., Shiwangi & Maurya, M. (2015). Morphological, Physiological and cultural variability in Alternaria brassicae isolates of Indian mustard, Brassicae juncea L. Czern and Coss. collected from different Agroclimatic regions of India. Eur. J. Biotechnol. Biosci., 3 (6), 33-37.
Sunitha, M. & Jha, P. K. (2024). Integrated management of Alternaria leaf spot of cauliflower under pot conditions. J. Exp. Agric. Int., 46 (2), 28-34.
Tu, D. V. (2015). Studies on Alternaria leaf spot (Alternaria brassicicola (Schw.) Wiltshire) of Cabbage (Brassica oleracea var. capitata L.) Ph. D. Thesis, University of Agricultural Sciences, Bengaluru.
Tu, D. V. & Somasekhara, Y. M. (2015). In vitro and in vivo evaluation of new molecules of fungicides against leaf spot (Alternaria brassicicola (Schw.) Wiltshire) of cabbage (Brassica oleracea var. capitata L.). Mysore J. Agric. Sci., 49(2), 359-363.
Verma, P. K., Singh, S., Gandhi, S. K. & Choudhary, K. (2006). Variability among Alternaria solani isolates associated with early blight of Tomato. Commun. Agric. Appl. Biol. Sci., 71, 37-46.
Vincent, J. M. (1947). Distortion of fungal hyphae in the presence of certain inhibitors. Nature. 159, 850.
Waghe, K. P., Wagh, S. S., Kuldhar, D. P. & Pawar, D. V. (2015). Evaluation of different fungicides, bioagents and botanicals against Alternaria blight caused by Alternaria helianthi (Hansf) of sunflower. Afr. J. Agril. Res., 10 (5), 351-358.
Yadav, S. P., Kumar, S., Prasad, R., Upadhyay, H. & Bansal, M. (2016). Identification of morphological, cultural and pathogenic variability of Alternaria brassicae causing Alternaria blight of Indian mustard (Brassica juncea). Indian Phytopathol., 69 (1), 102-104.
Section
Research Articles

How to Cite

Management strategy for leaf blight of cabbage (Brassica oleracea var. capitata L.) in foothills of Nagaland. (2024). Journal of Applied and Natural Science, 16(3), 1033-1039. https://doi.org/10.31018/jans.v16i3.5614