Chemical management of Alternaria blight of broad bean
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Authors
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S.C. DUBEY, B. PATEL and D.K. JHA
Department of Plant Pathology, Birsa Agricultural University, Ranchi 834006
Keywords:
Chemical management, Alternaria alternata, broad beanAbstract
Contaf (hexaconazole) inhibited percentage growth of Alternaria alternata in vitro. The other fungicides tested in order of effectiveness were thiram, aureofungin, Captaf (captan), Kitazin (iprobenfos), Topsin-M (thiophanate-methyl), Blitox-50 (copper oxychloride), Indofil M-45 (mancozeb + thiophanate-methyl), Kavach and Bavistin (carbendazim). Thiram (0.2%), Thiram (0.1%) + Topsin M (0.025%) and Captaf (0.2%) treated seeds of faba beans gave maximum germination and elimination of seedborne infection, respectively. Three sprays of Topsin M (0.1%) gave the best control of the disease in the field plus maximum yield and net benefit (Rs. 6.7) followed by Topsin M (0.05%) + Indofil M-45 (0.1%).
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