Photo 1. Typical infection on mature leaves of Dioscorea esculenta by leaf spots of Guignardia dioscoreae.
Yam leaf spot
Guignardia dioscoreae. Previously known as Guignardia dioscoreae-bulbiferae and Phyllostricta dioscoreae. Guignaria is the sexual state, and Phyllosticta dioscoreae is the asexual state, i.e., spores are produced without mating strains combining.
AUTHORS Grahame Jackson & Eric McKenzie
Photos 1-3 (taken by Eric McKenzie), and used in this fact sheet, appeared previously in McKenzie E (2013) Guignardia dioscoreae. PaDIL - (https://www.padil.gov.au).
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.
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