Predicta Pt (potato)
Predicta Pt is a DNA-based soil and seed peel testing service. It helps potato growers identify the soil-borne pathogens that pose a risk to their crops, so they can take appropriate steps.
Our award-winning technology provides a fast and cost-effective way for growers to:
- determine significant soil-borne disease risks
- make informed variety choices
- guide paddock management to minimise yield losses.
Learn more about testing for seedborne and soilborne pathogens in potatoes ().
Pathogens tested
Predicta Pt determines the amount of pathogen DNA present in soil and peel samples.
Our soil test indicates the disease risk from:
- black dot (Colletotrichum coccodes)
- verticillium wilt (Verticillium dahliae)
- powdery scab (Spongospora subterranea)
- root knot nematode (Meloidogyne fallax, M. javanica, M. incognita, M. arenaria).
Predicta Pt soil testing
Predicta Pt soil testing
Population densities are reported for the following pathogens:
- Helminthosporium solani
- Rhizoctonia solani AG2.1
- Rhizoctonia solani AG3
- Rhizoctonia solani AG4
- Sclerotinia sclerotiorum, S. minor
- Phytophthora erythroseptica, P. crytogea, P. dreschleri
- Pythium Clade I
- Streptomyces txtA gene
- Verticillium dahliae
- Pratylenchus crenatus
- Pratylenchus neglectus
- Pratylenchus penetrans
- Meloidogyne hapla.
Our peel test indicates the disease risk from:
- silver scurf (Helminthosporium solani)
- rhizoctonia disease (Rhizoctonia solani AG2.1 and AG3)
- common scab (Streptomyces txtA gene).
Predicta Pt peel testing
Predicta Pt peel testing
Population densities are reported for the following pathogens:
- Colletotrichum coccodes
- Rhizoctonia solani AG4
- Sclerotinia sclerotiorum, S. minor
- Verticillium dahliae
- Phytophthora erythroseptica, P. cryptogea, P. dreschleri
- Pythium Clade I
- Spongospora subterranea
- Meloidogyne fallax
- Meloidogyne hapla
- Meloidogyne javanica, M. incognita, M. arenaria (test does not distinguish the 3 species)
- Pratylenchus crenatus.
- Pratylenchus neglectus
- Pratylenchus penetrans.
Predicta Pt test results are reported under the following categories.
Report results
Report results
Disease risk
The risk of yield loss associated with a particular level of pathogen DNA is determined and displayed using a graphic to indicate a 'low', 'medium' or 'high' disease risk.
Population density
Category for ‘tests under evaluation’ as the relationship between yield loss and pathogen level has not been determined.
This enables new tests to be reported to growers faster, as developing disease risk categories can take several years. Results for population density categories can be used to:
- rank levels of inoculum in different paddocks
- monitor changes in inoculum during different phases of the cropping sequence
- confirm disease diagnosis.
Example reports
Access Predicta Pt services
Potato growers can access Predicta Pt services through an accredited agronomist.
Results are emailed to the agronomist within 2 weeks of the lab receiving soil samples. They will interpret the test results and advise on management options to reduce the risk of yield loss.
Contact one of the below local agronomists to begin your pre-planting risk assessment of potato seed and soilborne diseases.
Predicta Pt accredited agronomists
Predicta Pt accredited agronomists
| Company | Accredited agronomist | Region | Phone |
|---|---|---|---|
| South Australia | |||
| AgXtra | Ben Hill-Ling | Adelaide | 0400 616 769 |
| AuSPICA | Michelle Wilson | South East | (03) 5962 0000 |
|
DJ's Growers Services and Supplies | Caleb Shaw | Fleurieu | 0438 842 296 |
| Dowling AGRiTech | Peter Ellison | South East | 0447 608 993 |
| Elders | Michael Harding | Adelaide Plains | 0427 790 028 |
| George Nicoll | South East | 0447 735 139 | |
| Farmer Johns | Mark Egarr | Murray Bridge | 0409 703 175 |
| Nutrien Ag Solutions | Matthew Arthurson | South East | 0402 743 069 |
| Omnia Specialities | Andrew Doecke | Riverland | 0427 399 708 |
| Precision Agriculture | David Oddie |
South East, Fleurieu, Kangaroo Island | 0427 514 109 |
| Staphyt Australasia | Orville Hildebrand | Adelaide | 0427 032 709 |
| Red Earth Ag Co Pty Ltd | Tony Kourmouzis | South East | 0429 390 816 |
| SelectAG Services | Dale Stevenson | Adelaide Hills | 0407 654 994 |
| TriCal Australia | Bryan Robertson | Adelaide | 0400 808 284 |
| Kyle Murphy | Adelaide | (08) 8347 3838 | |
| Matthew Stein | Adelaide | (08) 8347 3838 | |
| New South Wales | |||
|
Yenda Producers Co-Operative Society LTD | Steven Serafin | Riverina | 0427 566 692 |
| Kurtis Brown | Riverina | 0427 566 670 | |
| Queensland | |||
| ECO AG | Antony McConville | SE Queensland | 0408 700 230 |
| Tableland Fertilizer | Paul Keevers | Atherton Tableland | 0439 921 133 |
| Tasmania | |||
| E.E. Muir & Sons | Peta Davies | Northern | 0408 259 739 |
| Julie Finnigan | Northern | 0408 270 068 | |
| Doug Green | Northern | 0418 141 474 | |
| Deon Heys | Northern | 0428 779 678 | |
| Ashlin Rodman | Northern | 0419 511 487 | |
| Matthew Morris | Northern | 0409 721 232 | |
| Taelyn Male | Northern | 0456 963 733 | |
| Georga Brennan | Southern | 0447 889 135 | |
| Elders | Josh Turner | Northern | 0437 656 098 |
| Justin Jones | Northern | 0448 990 434 | |
| Ross Tulich | Northern | 0427 802 552 | |
| Nutrien Ag Solutions | Stuart Millwood | Northern | 0419 823 122 |
| Hannah Mucha | Northern | 0437 154 476 | |
| Jeff Harrison | Northern | 0447 402 774 | |
| Alex Triffett | Northern | 0429 547 639 | |
| Simplot Australia | Angus Galloway | Northern | 0419 835 290 |
| Rachel Gill | Northern | 0428 381 437 | |
|
Tasmanian Institute of Agriculture, UTAS | Philip Beveridge | Northern | 0407 343 624 |
| Victoria | |||
| AuSPICA | Nigel Crump | (03) 5962 0000 | |
| conNEXUS global | Darren Cribbes | Goulburn Valley | 0400 600 556 |
| Bayer Crop Science | Andrew Powell | South West | 0419 310 938 |
| Davies and Rose | Jamie Davies | Creswick | 0419 887 618 |
| E.E. Muir & Sons | Drew Trouw | Gippsland | 0460 341 688 |
| Elders | Nicholas Gray | Gippsland | 0419 182 215 |
| Ben Malcolm | Gippsland | 0455 239 902 | |
| Lamb Weston | Mitchell Gorman | 0448 222 502 | |
| McCain Foods | Daniel Grayling | Ballarat | 0403 174 765 |
| Olivia Ryan | Ballarat | 0438 156 676 | |
| Western Australia | |||
| Nutrien Ag Solutions | Adam Chapman | South West | 0428 887 833 |
| Kirsty Smith | South West | (08) 9842 7888 | |
Learn about SARDI's annual agronomist accreditation course and register your interest in delivering Predicta services.
Researchers can also submit soil samples for Predicta Pt testing – contact us for details on test availability and cost.
Predicta Pt is not intended for in-crop diagnosis. See our crop diagnostic services for horticulture pathology, nematode screening, or seed and crop testing.
Submit samples
Following the correct sampling procedure is essential for accurate results – learn the Predicta Pt sampling strategy ().
Contact
Submit samples
SARDI Molecular Diagnostics Group
Plant Research Centre
2A Hartley Grove
Urrbrae SA 5064
Order free Predicta Pt sample bags and track samples
Russell Burns
Phone: 0401 122 115
Email: russell.burns@sa.gov.au
Matthew Rowe
Phone: 0491 933 041
Email: matthew.rowe2@sa.gov.au
Nigel Percy
Phone: 08 8429 2236
Email: nigel.percy@sa.gov.au
Discuss research tests and interpret results
Michael Rettke
Phone: 0401 122 124
Email: michael.rettke@sa.gov.au
