CAUSE OF EUCALYPTUS CITRIODORA DIEBACK IN PUNJAB, PAKISTAN

Arshad Javaid, Sara Samad

Abstract


The present study was carried out to explore the causal organism of dieback of Eucalyptus citriodora Hook in different areas of Punjab, Pakistan. Diseased samples of E. citriodora suffering from dieback were collected during January to March 2010. Purple to reddish spots were observed on leaf of this tree. Pathogen was isolated on malt extract agar medium. Isolated fungus was identified as Alternaria alternata (Fr.) Keissl. The isolated fungus was inoculated on E. citriodora leaves. The same fungus was re-isolated from the artificially inoculated  diseased leaves that confirms A. alternata as causal agent of dieback in E. citriodora in Pakistan.  


Keywords


Alternaria alternata, dieback, Eucalyptus citriodora, Pakistan

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Copyright (c) 2016 Arshad Javaid, Sara Samad

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Pakistan Journal of Phytopathology
ISSN: 1019-763X (Print), 2305-0284 (Online).
© 2013 Pak. J. Phytopathol. All rights reserved.