Pacific Pests, Pathogens and Weeds - Online edition

Pacific Pests, Pathogens, Weeds & Pesticides

Capsicum Phoma blight (239)

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  • Worldwide distribution. On capsicum, cotton, cowpea, eggplant, okra, soybean, tomato, and more. A minor disease when plants are wounded by weather or insects.
  • Spots, irregular, 1-2 mm, pale brown with brown borders, on leaves and stems. Large spots on fruits with black tiny fruiting bodies.
  • Spread in rain splash and wind; possibly, seed.
  • Cultural control: care during cultural operations; weed; control fruit flies; handle fruit with care; collect and burn trash after harvest; crop rotation.
  • Chemical control: not recommended for this disease; if required use copper or chlorothalonil.
Common Name

Capsicum blight

Scientific Name

Phoma species; commonly Phoma exigua. It was previously known as Ascochyta phaseolorum. It has been renamed Boeremia exigua var. exigua.

AUTHOR Grahame Jackson
Information from McKenzie E (2013) Boeremia exigua: PaDIL -; and from CABI (2019) Boeremia exigua var. exigua (leaf spot). Crop Protection Compendium. ( Photos 1&2 Jacqui (Wright) Kami, formerly Plant Pathologist, Secretariat of the Pacific Community, Suva, Fiji. Photo 3 Phoma pycnidia Bruce Watt, University of Maine, Photo 4 Phoma sp. Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services,

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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