Clubroot – Nursery Cleaning

Clubroot is the most serious soilborne disease affecting brassicas world wide and is caused by Plasmodiophora brassicae Woronin.

Clubroot is endemic in most Australian production regions with crop losses between 5 and 10%.

Ensure equipment is clean

High pressure washing is the most effective way to
clean equipment that may harbour the clubroot fungus


Caroline Donald

Ian Porter

Josie Lawrence

Barbara Czernaikowski

Rachel Lancaster

Dean Metcalf

Leigh James

Peter Stephens

Shane Dullahide

Clubroot Factsheet
Download 193kb

Nursery Hygiene :

  • Do not rely on disinfection and/or sterilisation alone.
      Always high pressure wash reusable plastic seedling trays and equipment before sanitising.

  • Do not assume that clubroot can be eliminated by briefly rising, dipping or spraying trays and equipment.
  • Check regularly to ensure that sterilising equipment is working properly, maintain 70°C for 20 mins.
  • Pack trays loosely to allow penetration of steam or sanitiser solution.
  • Disinfectants should be prepared strictly as directed.
      Ensure equipment soaks in solution for the recommended period of time.
      Replace the solution regularly according to manufacturers instructions.

  • Seedling benches should be washed down and sanitised before use.

See Also :

Caroline Donald – DPI Victoria (this site)

Financial support for this research has been provided by: Horticulture Australia Limited, the vegetable growers R&D levy and State Departments of Agriculture.

Thanks to the following growers for their assistance with trial work:

Con Ballan Geoff Cochrane Anthony Mason
David Milburn George Sabo Tony Wright
Sam Calameri Tom Winfield Andrew Doran
Mark Kable Kevin Temple Rod
Michael Camenzuli WU Yue Fang, ZHONE Cai Xia
Ha Sau Ying XIANG Cai Ji Robert Quirks
Dario Semenzin Harslett farms Greg Widderick

Thanks to the following for their technical assistance on the project:

Josie Lawrence Barbara
David Tooke Lisa Gibson
Jenny McGough Christina Bakker
Chang You Pan Kevin Lai
Alison Anderson Glenn Geitz
R. Palmer Kathy
David Richard Duncan Cameron
C. Haase  

Statistical advice by Fiona Thomson and Nam Ky Nguyen (Department of Primary Industries, Vic).

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