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PreDicta B

PreDicta B (B = broadacre) is a DNA based soil testing service to identify which soilborne pathogens pose a significant risk to broadacre crops prior to seeding.

It has been developed for cropping regions in southern Australia and includes tests for:

  • Cereal cyst nematode
  • Take-all (Gaeumannomyces graminis var tritici (Ggt) and G. graminis var avenae (Gga))
  • Rhizoctonia barepatch (Rhizoctonia solani AG8)
  • Crown rot (Fusarium pseudograminearum and F. culmorum
  • Root lesion nematode (Pratylenchus neglectus and P. thornei)
  • Stem nematode (Ditylenchus dipsaci)
  • Blackspot of peas (Mycosphaerella pinodes, Phoma medicaginis var pinodella and Phoma koolunga)

Grain producers can access PreDicta B via agronomists accredited by SARDI to interpret the results and provide advice on management options to reduce the risk of yield loss.

PreDicta B samples are processed weekly from February to mid May (prior to crops being sown) to assist with planning the cropping program.  

PreDicta B is not intended for in-crop diagnosis.  This is best achieved by sending samples of affected plants to your local plant pathology laboratory.

PreDicta B Sample Registration


For information on PreDicta B contact:
Alan McKay
Email alan.mckay@sa.gov.au
Ph 08 8303 9375