Pacific Pests, Pathogens & Weeds - Mini Fact Sheet EditionCabbage club root (283)
Pacific Pests, Pathogens & Weeds - Mini Fact Sheet EditionCabbage club root (283)
Summary
- Worldwide distribution. In tropics, sub-tropics and temperate countries. On Chinese cabbage, cabbage and broccoli. An important disease.
- Single celled animal, not a fungus or a bacterium.
- Spores in soil swim to roots, infect, galls form (club root symptom). Root damage causes leaves to wilt. Thick-walled spores form that last >10 years.
- Spreads in soil water, soil on machinery, shoes, trade in plants.
- Cultural control: certified plants; nursery hygiene: clean trays, pasteurise soil or soilless mixes; drainage; apply lime (worse in acid soils); weed; remove soil from shoes, machinery; collect and burn debris; 3-year (or more) crop rotation; resistant varieties.
- Chemical control: none recommended.
Common Name
Club root
Scientific Name
Plasmodiophora brassicae. It is not a fungus; it is in a separate kindom called Protista, and is in a group known as rhizaria. There are many club root strains.
AUTHOR Grahame Jackson
Information from Diseases of vegetable crops in Australia (2010). Editors, Denis Persley, Tony Cooke, Susan House. CSIRO Publishing; and from CABI (2016) Plasmodiophora brassicae (cabbage club root). Crop Protection Compendium. (www.cabi.org/cpc). Photos 1&3 Gerald Holmes, California Poltechnic State University at San Luis Obispo, Bugwood.org.
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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