27/08/19 - New Ramularia-fighting tools available for this spring will be welcomed by barley growers battling the yield-robbing menace.
Now approved for Ramularia, crop protection company ADAMA NZ’s multi-site Phoenix has the backing of FAR trials, and of the collective expertise of international industry leaders.
Fiona Burnett, Professor of Applied Plant Pathology and Head of Knowledge and Innovation at Scotland’s Rural College, and a keynote speaker at the FAR conference in June, is an advocate of the use of multi-sites. She urged conference attendees to learn from the mistakes made in the UK, which experienced resistance in cereals a decade earlier.
FAR trials support Phoenix
FAR’s own New Zealand trials (FAR Crop Action Edition 134, 14. September 2018) showed that adding Phoenix to Proline® in a two-spray programme gave significantly better control of Ramularia than mixes of triazole with SDHI and, also, the highest yield.
Many farmers will already be aware of Phoenix, which has been used very successfully at T1 against Septoria in wheat.
For barley growers, the Ramularia label extension has come in the nick of time. In 2018/19, yield losses, from the disease, of up to 30% were reported locally. Predictions from the UK and Europe continue to be unrelentingly grim.
Ramularia resistance to key chemical groups in UK and Europe
Andy Bailey, Global Fungicide Expert and ADAMA UK Technical Specialist, had visited New Zealand as a guest of ADAMA NZ in 2017 and again in 2018 to share the Northern Hemisphere’s experience.
Reflecting on the UK’s, and Europe’s, most recent season he says growers are still facing major challenges. “For many, many years DMIs worked against Ramularia. Suddenly now, for whatever reason, we’ve reached a tipping point and in the UK, it has happened very rapidly. Currently we have Ramularia resistance to almost all key chemical groups.”