Evaluation of selected fungicides for the management of white rust of Indian mustard
EVALUATION OF FUNGICIDES FOR THE MANAGEMENT OF WHITE RUST OF INDIAN MUSTARD
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Authors
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K BASAVARAJ
Department of Plant Pathology, CCS Haryana Agricultural University, Hisar-125 001, Haryana
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A S RATHI
Department of Plant Pathology, CCS Haryana Agricultural University, Hisar-125 001, Haryana
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N P GURAV
Department of Plant Pathology, CCS Haryana Agricultural University, Hisar-125 001, Haryana
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RAKESH PUNIA
Department of Plant Pathology, CCS Haryana Agricultural University, Hisar-125 001, Haryana
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ANIL KUMAR
Department of Plant Pathology, CCS Haryana Agricultural University, Hisar-125 001, Haryana
Keywords:
Efficacy, Fungicides, Management, Indian mustard, White rust, YieldAbstract
Field studies were conducted to evaluate the efficacy ofselected fungitoxicants viz., mancozeb 75 WP @ 0.2%, metalaxyl 8%+ mancozeb 64% @ 0.2%, hexaconazole 5 EC @ 0.05%, cymoxanil 8% + mancozeb 64% @ 0.1% and azoxystrobin 23% SC 0.05% as a single spray treatment at 45 DAS and each four fungicides at 60 DAS in succession of mancozeb 75 WP at 45 DAS in control of white rust disease. The experiment was carried out for two consecutive years during rabi 2014-15 and 2015-16 with susceptible Indian mustard cultivar Varuna. All the fungicides tested were significantly effective in reducing the disease over the check; however the level of efficacy varied among the treatments. The plots sprayed with mancozeb (0.2%) at 45 DAS followed by azoxystrobin (0.05%) at 60 DAS recorded significantly lower disease severity over the other treatments both at leaf and staghead phase with significant highest seed yield of 1906.81 kg/ha which was 42.33% higher over the check. The spray of mancozeb (0.2%) at 45 DAS followed by metalaxyl + mancozeb (0.2%) at 60 DAS was the next best treatment among combinations of two fungicidal sprays. Among single fungicidal spray treatments, spray of metalaxyl + mancozeb @ 0.2% was effective in reducing white rust at leaf and staghead phases with concomitant increase in seed yield. In general, none of the single spray treatments was found superior over the plots that received two fungicidal sprays i.e. mancozeb at 45 DAS followed by other fungicides at 60 DAS.
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References
Bhargava A K Sobti A K Bhargava L P and Nag A 1997. Chemical control of white rust of mustard through seed treatment-cum-spray and their economics. Indian
Phytopathology, 50(2): 242-245.
Conn K L, Tewari J P and Awasthi R P 1990. A disease assessment key for Alternaria black spot in rapeseed and mustard. Canadian Plant Disease Survey, 70: 19-22.
Gomez K A and Gomez A A 1984. Statistical Procedures for Agricultural Research, Second edition, John Wiley and Sons, New York, 680 pp.
Jacobson D J, Le Febvre S M, Ojerio R S, Berwald N and Heikkinen E 1998. Persistent, systemic, asymptomatic infections of A. candida, an oomycete parasite, detected in DOI: https://doi.org/10.1139/b98-039
three wild crucifer species. Canadian Journal of Botany, 76:739-750.
Kumar A 2008. Management of white rust of Indian mustard (Brassica juncea) in mid hills of North-Western Himalayas. Journal of Mycolology Plant Pathology, 38(3): 537-541.
Lakra B S and Saharan G S 1989. Sources of resistance and effective screening techniques in Brassica Albugo system. Indian Phytopathology, 42: 293.
Meena P D, Rathi A S, Vinod Kumar and Dhiraj Singh 2014. Compendium of Rapeseed-Mustard Diseases: Identification and Management. ICAR-Directorate of Rapeseed-Mustard Research, Bharatpur, Rajasthan, pp. 30.
Mehta N, Saharan G S, Kaushik C D and Mehta N 1996. Efficacy and economics of fungicidal management of white rust and downy mildew complex in mustard. Indian Journal of Mycology Plant Pathology, 26: 243-247.
Sheoran O P, Tonk D S, Kaushik L S, Hasija R C and Pannu R S 1998. Statistical Software Package for Agricultural Research Workers. Recent Advances in information theory, Statistics & Computer Applications. D S Hooda and R C Hasija (Eds.), Department of Mathematics Statistics, CCS HAU, Hisar, pp. 139-143.
Sudisha J, Amruthesh K, Deepika S A, Shetty N P, Sarosh B Rand ShettyHS 2005. Comparative efficacyofstrobilurin fungicides against downy mildew disease of pearl millet. Pesticide Biochemistry and Physiology, 81: 188-197. DOI: https://doi.org/10.1016/j.pestbp.2004.08.001
Vasudeva R S 1958. Diseases of rape seed and mustard. In: Rapeseed and Mustard, Indian Central Oilseed Community. Hyderabad, India, pp. 77-86.
Wheeler B E J 1969. An Introduction to Plant Diseases. John Wiley, London, pp. 301.
Wong F P and Wilcox W F 2001. Comparative of physical modes of action of azoxystrobin, mancozeb and metalaxyl against Plasmapara viticola (grapevinedownymildew).PlantDisease, 85(6): 649-656. DOI: https://doi.org/10.1094/PDIS.2001.85.6.649
Yadav D K, Vignesh M, Sujata V, Yadav A K, Mohapatra T and Prabhu K U 2011. Characterization of Indian mustard (B. juncea) indigenous germplasm line BIOYSR for white rust resistance. Indian Journal of Plant Genetic Resource, 24: 400-442.
Yadav M S 2003. Efficacy of fungitoxicants in the management of Alternaria blight and white rust of mustard. Journal of Mycology Plant Pathology, 33(2): 307-309.
