To assess the yield of the plant growth regulator (PGR), Moddus Evo and foliar fungicides Amistar Xtra, Cogito and experimental in furrow fungicide SYNSIF1 when used in barley. Previous work has shown that when combining PGRs with good quality fungicides yield and return on investment can be significantly enhanced in cereal crops grown in high rainfall environments. The aim of this trial was to explore these affects in more detail.

• The fungicides Amistar Xtra and Cogito in this trial significantly reduced foliar disease levels providing significant yield increases in barley.
• The addition of Moddus Evo plant growth regulator provided a small incremental improvement on yield to the fungicides alone.
• The experimental in-furrow fungicide SYNSIF1 was not able to deliver disease control and hence yield improvements in this trial because foliar disease appeared after the useful residual of the product had been exhausted.