Key Points
- A range of two and three spray fungicide programmes (including three new fungicides) were tested on autumn sown barley cv. Optic, in both dryland & irrigated trials at the FAR Arable Site.
- Under irrigation there was a greater incidence of both scald and leaf rust.
- Proline was superior to Opus (in scald and leaf rust control) and gave positive margin benefits when mixed with other fungicide partners (due to late rust).
- Acanto was a better partner for Proline than Twist, where a partner was required.
- The best MOCC on dryland was $419/ha from GS26 Proline/Protek, GS31 Proline/Twist, GS39 Proline/Twist.
- The best MOCC under irrigation was $988/ha from Proline/Protek at GS26 followed by Proline/Acanto both at GS31 & 49.
- Dryland crops gave relatively greater benefits to early Protek sprays.