VG00044 Clubroot – Implementing a control strategy

Clubroot is the most serious soilborne disease affecting brassicas world wide.

Clubroot is caused by Plasmodiophora brassicae Woronin, an obligate biotrophic parasite.

Australian crop losses are estimated at between 5 and 10% of production.

Clubroot is endemic in most of the major production regions of Victoria, New South Wales and

FACT : Integrated control includes the use of
prevention and management techniques to provide cost effective disease control


Caroline Donald

Ian Porter

Josie Lawrence

Barbara Czernaikowski

Rachel Lancaster

Dean Metcalf

Leigh James

Peter Stephens

Shane Dullahide

VG00044 Clubroot - implementing a control strategy
Download 246kb

There are two elements of integrated Clubroot disease control :


  • HYGIENE Good farm sanitation and hygiene protocols are your responsibility and your right.

    Develop a hygiene strategy and ensure all staff and visitors follow it.

  • SOURCE Use uncontaminated; Water. Seedlings. Trays. Equipment.
  • CLUBROOT THRIVES in warm, moist, acid soils. Increase pH to 6.5-7.5 with lime
  • CULTURAL PRACTICES Improve drainage. Rotate with non-brassica crops. Control brassica weeds. Use beneficial nutrients.


  • IDENTIFY Determine disease risk. Identify and eliminate the source.
  • DECIDE upon a management strategy based on the disease risk category.
  • QUARANTINE Remove affected plants. Dispose of diseased material. Isolate the area.
  • IMPLEMENT the elements of the strategy. Consider appropriate rates, timing and method of application.

Financial support for this research has been provided by: Horticulture Australia Limited, the vegetable
growers R&D levy and Stae 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).

^ Back to top