Developed by SARDI (South Australian Research and Development Institute), PREDICTA Pt is a commercial DNA testing service that can identify which pathogens are in the soil or skin of seed tubers.

In Issue 05 of PotatoLink magazine, Ryan Hall and Jenny Ekman from the PotatoLink team report on PREDICTA Pt including a 5-year case study describing its use in monitoring powdery scab and rhizoctonia on a commercial farm.

This 2001 report was the first study into the influence of crop rotations on disease and yields in the Australian potato industry. The report found that while there were some significant advantages to crop rotations there were still some disease issues that persisted.