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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2013 , Volume 1, Issue 2
Page No. : 62-68
Article doi: : http://dx.doi.org/10.18782
In Vitro Evaluation of Botanicals and Biocontrol Agents against Alternaria alternata, Causing Black Core Rot of Citrus
K. Venkata Ramesh*
Department of Plant Pathology, College of Horticulture, Rajendranagar, Hyderabad
*Corresponding Author E-mail: kvrameshagri@gmail.com
Received: 7.03.2013 | Revised: 11.04.2013 | Accepted: 19.04.2013
ABSTRACT
Postharvest pathogens were isolated from diseased citrus fruits. Different post harvest diseases observed during the present investigations were anthracnose, black core rot, black mould rot, fusarium rot, stem end rot and sour rot. In vitro evaluation of botanicals against Alternaria alternata revealed that 10 % chromolaena leaf extract recorded maximum (69.51 %) mycelial growth inhibition where as 10% garlic bulb extract recorded highest spore germination inhibition. Among all the biocontrol agents tested T. harzianum (75.21 %) and T. virens (isolate 2) (74.45 %) were most effective in inhibiting the mycelial growth of A. alternata.
Keywords: Biological control, Citrus black core rot of citrus, Alternaria alternata, T. harzianum
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article:
Venkata Ramesh, K., In Vitro Evaluation of Botanicals and Biocontrol Agents against Alternaria alternata, Causing Black Core Rot of Citrus, Int. J. Pure App. Biosci. 1(2): 62-68 (2013).
