True Eyespot activity
0.55 L/ha Proline275 delivered 0.5t/ha yield benefit vs 1.5 L/ha Tracker in this high pressure SAC trial, despite Tracker giving 15% better disease control. Lack of correlation between visual disease control and yield is common in Eyespot trials, reflecting difficulties in visually scoring yield robbing R-type Eyespot. This result also reflects the broader stem base spectrum and Septoria activity of Proline275.
Source: 2008 SAC Perth Eyespot trial. Eyespot index in untreated = 52%
Tracker contains epoxiconazole and boscalid and is a trademark of BASF