Integrated Management of Alternaria Leaf Spot of Cauliflower under Pot Conditions

Mummineni Sunitha *

Department of Plant Pathology, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar-848125, India.

P. K. Jha

Department of Plant Pathology, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar-848125, India.

*Author to whom correspondence should be addressed.


Abstract

Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by Alternaria brassicae is the most destructive disease at the curd stage and seed setting stage, attributed to causing 30-50% losses and in severe cases reaching up to 98% in seed crop. In the present investigation, the pathogen Alternaria brassicae was found to produce typical symptoms of the disease as small, irregular brown spots with concentric rings, also surrounded by a yellow chlorotic halo.  Later on, lesions were found to coalesce forming irregular, brown to dark brown patches with concentric rings. The disease is difficult to manage alone with fungicides or bio agents or botanicals. Hence the present study was undertaken to manage the disease effectively by application of fungicides, bio agents, botanicals and their combinations. During the investigation on integrated management under sick pot conditions, the combination of T. viride + Neem + Azoxystrobin (10.81% Percent Disease Index) was found most effective with inhibition of disease by 79.02%. This was followed by T. viride + Azoxystrobin (11.63% Percent Disease Index) with inhibition of the disease by 77.40% compared to the control 51.52% Percent Disease Index. 

Keywords: Alternaria brassicae, botanicals, bio agents, cauliflower, fungicides, percent disease index


How to Cite

Sunitha, M., & Jha, P. K. (2024). Integrated Management of Alternaria Leaf Spot of Cauliflower under Pot Conditions. Journal of Experimental Agriculture International, 46(2), 28–34. https://doi.org/10.9734/jeai/2024/v46i22306

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References

Anonymous Horticultural Statistics at a Glance, 2018 to 2019. National Horticulture Board, Ministry of Agriculture and farmer’s welfare, Government of India; 2019.

Ramsey GB, Smith MA. Market diseases of cabbage, cauliflower, turnips, cucumbers, melons, and related crops (No. 184). US Department of Agriculture, Agricultural Marketing Service, Market Quality Research Division; 1961.

Mishra PK, Saha S, Singh RP, Singh A, Rai AB. Integrated approach for the management of blight of cauliflower. International Journal of Agricultural Environment Biotechnology. 2012; 5(4):373-376.

Mayee CD, Datar VV. Phytopathometry. Technology, Bull-1. Marathwada Agricultural University: Parbhani, Maharashtra; 1986.

McKinney HH. Influence of soil temperature and moisture on infection of wheat seedlings by Helminthosporium sativum. Journal Agricultural Research. 1923;26:195-217.

Gomez KA, Gomez AA. Statistical Procedures for Agricultural Research. 2nd edition. John Wiley and Sons, New York, USA. 1983;680.

Singh J, Kerkhi SA. Biological control of Alternaria blight in Linseed. Annuals of Plant Protection Science. 2010;18(1):223-282.

Balai LP, Singh RB. Integration management of Alternaria blight of pigeon pea with some fungicides and antagonists in pot condition. The Bioscan. 2013;8(3):881-886.

Waghe KP, Wagh SS, Kuldhar DP, Pawar DV. Evaluation of different fungicides, bio agents and botanicals against Alternaria blight caused by Alternaria helianthi (Hansf) of sunflower. African Journal of Agricultural Research. 2015;10(5):351-358.

Chavan PG, Apet KT, Wagh SS, Hingole DG. Integrated management of Alternaria leaf spot of cauliflower caused by Alternaria brassicae (Berk.) Sacc. Trends in Biosciences. 2015;8(8): 1908-1913.

Sharma D, Sharma R, Puri S. Compatibility of biocontrol agents with fungicides. Bioscan. 2016;11(4):2863.

Valvi HT, Kadam JJ, Bangar VR. In vitro evaluation of certain antifungal plant extracts and biocontrol agents against Alternaria brassicae (Berk.) Sacc. causing Alternaria leaf spot of cauliflower. International Journal of Chemical Studies. 2019;7(2):1774-1777.

Kakraliya SS, Choskit D, Pandit D, Abrol S. Effect of bio agents, neem leaf extract and fungicides against Alternaria leaf blight of wheat (Triticum aestivum L.). Natural Products Chemistry and Research. 2017;5:8.

Kiran GVNSM, Thara SS, Brinda GB. In vitro efficacy of fungicides against Alternaria brassicicola causing Alternaria leaf spot of cabbage. International Journal of Current Microbiology and Applied Sciences. 2018; 7(4):1131-1135.