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New report of Cycas revoluta leaf necrosis by Phoma herbarum from Pakistan.

Madiha Nayab ; Naureen Akhtar

Journal of Plant Diseases and Protection 2016 Vol 123 No. 4 pp. 193-196;

Abstract

Necrosis on Cycas revoluta leaves was observed on trees growing in a local garden in Lahore, Punjab, Pakistan. Phoma herbarum was isolated and identified on the basis of morphological characters from the necrotic areas of leaf. Morphology-based identification was confirmed by sequencing of ITS region of rDNA. Koch's pathogenicity postulates were verified. To our knowledge, this is the first report of P. herbarum as a pathogen of leaf necrosis of C. revoluta in Pakistan.