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26 August 2021 - by Andrew Bailey - Cereals Fungicide Technical Specialist
2 min

2021 - ARIZONA: Septoria protection that pays for itself

With foliar diseases such as septoria presenting a constant underlying threat to wheat crops, a robust fungicide treatment at T1 is vital to ensure crop protection programmes get off to a strong start.

This message has been reinforced by the lessons learned in recent months: the cool, dry conditions and resulting low disease pressure in early Spring 2021 saw many T0 and T1 treatments being pared back. Unfortunately, this dry period was followed by a warmer, wetter May which caused septoria spores to spread rapidly upwards and into the developing wheat canopy.

With the benefit of hindsight, the inclusion of a multi-site fungicide such as folpet at T1 would have kept crops cleaner for longer, but by then it was too late: with a shortage of curative actives to choose from, those crops which hadn’t been adequately protected were on the backfoot for the remainder of the season.

As the weather after a fungicide has been applied is more important than the weather at the time of application, including the protectant fungicide ARIZONA® (500g/L folpet) as part of the T1 tank mix will provide good insurance should the weather turn wet and will more than pay for itself by providing an additional level of disease control.

ARIZONA® provides a strong foundation to spring fungicide programmes and is the clear choice to fill the gap left by CTL: it enables crops to stay ahead of diseases and ensures each successive leaf stays greener for longer by providing long-lasting protection against septoria.

The benefits of ARIZONA

  • Effective: provides reliable and robust protection against septoria
  • Valuable: pays for itself through improved green leaf area retention and better yields
  • Resistance: prolongs the effective lifetime of at-risk single site fungicides
  • Protection: reduces the initial disease burden and lessens the impact of later infections
  • Flexible: can be used at multiple timings to provide season-long protection

The essential T1 & T2 fungicide

Trial work carried out by ADAMA in 2021 has shown that the inclusion of ARIZONA® at the T1 and T2 timings offers the following benefits:

T1 application

  • Kickstarts disease protection by reducing the early season septoria burden
  • Improves green area retention on Leaf 2 and Leaf 3

T2 application

  • Increases the persistence of septoria control on Leaf 1 and Leaf 2
  • Works with partner products to keep each successive leaf greener for longer

Trt 8 T1 Revystar 1.0 fb T2 Revystar 1.0T1 Leading Azole + SDHI 1.0 fb T2 Leading Azole + SDHI 1.0

Trt 11 T1 Revystar 1.0+Arizona 1.0 fb T2 Revystar 1.0+Arizona 1.0T1 Leading Azole + SDHI 1.0 + ARIZONA 1.0 fb T2 Leading Azole + SDHI 1.0 + ARIZONA 1.0

cv Cordiale, Cambridgeshire, 2021

ARIZONA the flexible option for septoria control in wheat

ARIZONA® (500g/L folpet) is a unique multi-site protectant fungicide for wheat and barley, providing an anti-resistance strategy for the control of septoria and a range of other cereal diseases.

Arizona 1L

cereal disease hub

Andrew Bailey - Cereals Fungicide Technical Specialist
Andrew Bailey - Cereals Fungicide Technical Specialist
One of the UK arable sector’s most experienced fungicide specialists. With a background in applied biology (specialising in crop science and plant pathology), and with a career spanning 30 years in field based research, fungicide development and fungicide technical support, Andy has worked in the crop protection sector on a UK, European and global level.

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