Pacific Pests and Pathogens Pacific Pests, Pathogens & Weeds - Mini Fact Sheet Edition

Bean (Ascochyta) leaf spot (319) Print Fact Sheet


Common Name

Ascochyta spot.

Scientific Name

Boeremia exigua; previously known as Ascochyta phaseolorum, and Phoma exigua, and many other names. The name now given to the fungus is Boeremia exigua var. exigua.

AUTHORS Grahame Jackson & Eric McKenzie 
Information (and Photos 2&5) Diseases of vegetable crops in Australia (2010). Editors, Denis Persley, Tony Cooke, Susan House. CSIRO Publishing; and from CABI (2016) Boeremia exigua var. exigua (leaf spot) Crop Protection Compendium. ( Photo 1 R.J. Reynolds Tobacco Company Slide Set R.J. Reynolds Tobacco Company, Photo 3 Howard F. Schwartz Colardo State University, Photo 4 (taken by Eric McKenzie), and used in this fact sheet, appeared previously in McKenzie E (2013) Boeremia exigua PaDIL - (

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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