To develop profitable and sustainable approaches to disease management in HRZ barley.

ï‚· Compared to the untreated control a single application of fungicide did not improve yields despite reducing the incidence of NFNB in Planet, and Scald in HV8 Nitro.
ï‚· The movement to a two spray fungicide strategy with the first timing at GS31 followed by the second timing at GS39 – 49 increased yield by 0.9 and 1t/ha respectively compared to the untreated control or single unit application.
ï‚· The inclusion of an SDHI seed dressing Systiva did not improve yields relative to the two unit fungicide strategy.
ï‚· These findings suggest the second timing of GS39-49 is providing the majority of the yield improvement observed at this experiment in 2020, this finding is also true for the level of disease infection expressed
ï‚· The use of fungicides applied at GS39 – 49 are consistently improving grain quality and the frequency in which malting quality is achieved even in the absence of a yield response and should not be ignored
ï‚· The lack of yield response to seed dressings, and early applications of fungicide suggest that the disease is developing later in the canopy from this sowing date. Subsequent work will follow up this observation in 2021.

Rotation position: 1st cereal after canola, 2018 wheat.
Soil type & management: Neutral-slightly alkaline Organosol (Peat soil) – high organic matter (0-30cm).