Key Points
- Fungicide treatments gave significant disease control, yield increases, and margins on a ‘less susceptible cultivar’ (Claire) for the second year in succession
- All treatments that included GS65 (mid-flowering) fungicide application containing a strobilurin, gave good green leaf area retention, yield and margins
- Where GLA of the flag leaf at GS87-91 was maintained, final yield was increased. Retention of GLA was directly attributable to the use of fungicides
- Over two seasons and three trials, the best treatments have given a 12-33% yield increase
- Over two seasons, a trend has emerged that with Claire, the full leaf 3 fungicide was the least important of the three timings tested, with two fungicide applications at GS39 and GS59/65 giving the best margins