Evaluation of bio-efficacy of Bacillus subtilis (NBAIMCC-B-01211) against disease complex caused by Meloidogyne incognita and Fusarium oxysporum f.sp. vasinfectum in okra
2014
Rao, M. S. | Dwivedi, M Kusum | Kumar, R Manoj | Chaya, M. K. | Rathnamma, K. | Rajinikanth, R. | Grace, G. N. | Priti, K. | Shree, N Vidya | Kamalnath, M. | Prabu, P. | Krishna, C Gopala | Rini, P. | Shivananda, T. N.
Field studies were conducted at two different agro-climatic regions of India to assess the bio-efficacy of liquid and talc formulations of Bacillus subtilis (Cohn 1872), 1% W.P. for the management of Meloidogyne incognita (Kofoid & White, 1919) Chitw, 1949 and Fusarium oxysporum f.sp. vasinfectum on okra (Abelmoschus esculentus Moench.). Results clearly indicated the potential of this bio-pesticide in the management of M. incognita and F. oxysporum f.sp. vasinfectum on okra. B. subtilis was enriched in farm yard manure (FYM) and applied at different doses in the experimental plots. Seed treatment with 20g or 20ml of B. subtilis/kg and application of five tons of FYM enriched with 5kg or 5 lit B. subtilis/ha proved to be significantly effective in reducing the population of M. incognita and bringing down the disease incidence of F. oxysporum f.sp. vasinfectum. These treatments also increased the yield of okra in the two agro-climatic regions.
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