Field management of coconut leaf rot disease with biological control agents, their bioformulation and viability in organics

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dc.contributor.authorSrinivasan, N.
dc.contributor.authorBharathi, R.
dc.contributor.authorShanty Issak
dc.contributor.authorRajeev, G.
dc.date.accessioned2014-06-18T06:22:07Z
dc.date.available2014-06-18T06:22:07Z
dc.date.issued2011
dc.description.abstractLeaf rot disease is an integral part of root (wilt) disease of coconut and hence its control a great importance. Potential of biological control agents against leaf rot pathogens have been established. Field performance of talc-based B. subtilis and P. fluorescens against leaf rot (individually and in consortium mode), growth of bioagents in coconut water-based media for enriching bioformulations and viability of the bioagents in organic carriers based formulations were evaluated. A field experiment conducted with treatments of B. subtilis, P. fluorescens, B. subtilis + P. fluorescens and Phytosanitation + B. subtilis + P. fluorescens in comparison with control showed a decline of disease index in newly emerged leaves of treated palms (higher disease ameliorative effect through consortium of B. subtilis and P. fluorescens). Multiplication of bacterial (P. fluorescens) and fungal (Trichoderma viride) bioagents could be achieved in coconut water-based media - moderate-good growth of P. fluorescens in coconut water (pH adjusted to 7.0), coconut water amended with peptone at 1 % or jaggery at 5 % or 10 % levels comparable with its growth in King’s B broth; moderate-good mycelial yield of T. viride in coconut water-based media with or without jaggery amendment comparable to its growth in potato dextrose broth. The bacterial and fungal biocontrol agents as grown in coconut water-based media could be processed into talcbased bioformulations (quality comparable with such products evolved using conventional media). The talc-based formulations admixed with organics viz., neem cake, vermicompost and coir pith-(1: 1w/w) that were individually packed also assured reasonable period shelf-life (six months) of bioagents, compared well to corresponding other media. Thus mass production of popular biological control agents in coconut water based medium followed by their bioformulations through fortifications with popular organics has been successfully evolved.en_US
dc.identifier.citationJournal of Plantation Crops, 2011, 39 (1): 99-104en_US
dc.identifier.urihttp://hdl.handle.net/123456789/3054
dc.language.isoenen_US
dc.subjectBio agentsen_US
dc.subjectbiological controlen_US
dc.subjectcoconuten_US
dc.subjectleaf rot diseaseen_US
dc.subjectmass productionen_US
dc.subjectorganicsen_US
dc.titleField management of coconut leaf rot disease with biological control agents, their bioformulation and viability in organicsen_US
dc.typeArticleen_US

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