Pacific Pests, Pathogens and Weeds - Online edition

Pacific Pests, Pathogens, Weeds & Pesticides

Cabbage black rot (131)

Click/tap on images to enlarge
  • Worldwide distribution. On members of the cabbage (brassica) family, e.g., broccoli, Brussels sprouts, cabbage, cauliflower, Chinese cabbage, radish. An important disease.
  • Bacteria enter natural openings at the leaf edge, and travel along veins, causing V-shaped rots, yellowing and death. Head rots develop, too.
  • Spread in rain, in seedlings, soil on machinery, shoes and in seed. Survives in debris and weeds.
  • Cultural control: certified seed or hot water (50°C for 25 mins); nursery hygiene: clean trays, pasteurise soil or use soilless mixes; monitor, and discard infected plants; well-drained fields, if necessary use raised beds; space plants for air circulation; weed; collect and burn debris or plough in remains after harvest; 3-4-year crop rotations.
  • Chemical control: not recommended.
Common Name

Brassica black rot, black rot of cabbage

Scientific Name

Xanthomonas campestris pv. campestris

AUTHOR Grahame Jackson
Information from (including Photos 1&4) Diseases of vegetable crops in Australia (2010). Editors, Denis Persley, et al. CSIRO Publishing; and CABI (2019) Xanthomonas campestris pv. campestris. (black rot). Crop Protection Compendium. (; and from Vicente JG, Holub EB (2012) Xanthomonas campestris pv. campestris (cause of black rot of crucifers) in the genomic era is still a worldwide threat to brassica crops. British Society for Plant Pathology. ( Photo 2 David B. Langston, University of Georgia,

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.

Copyright © 2022. All rights reserved.