Key Points
- Fungicide treatments gave significant disease control, yield increases, and margins on Savannah for the second year in succession
- All treatments applied at or after GS47 (late booting) containing strobilurin gave good green leaf area retention, yield and margins
- A correlation was apparent between GLA of the flag leaf & leaf 2 at GS83, and final yield. Retention of GLA was directly attributable to the use of fungicides
- Over two seasons (different diseases), treatments comparing different strobilurin products have been hard to separate. ‘Straddle’ programmes have performed well - research will continue
- The new strobilurin Opera appears to be performing well although more work is required to further examine its use pattern