A T1 fungicide can be the hardest application to get right. Ideally, it targets GS 32 (leaf 3 emergence, two leaves below the flag), but getting the timing right can be challenging if conditions are wet and/or windy. FAR has extended the T1 window to late GS 31- GS 33 find out more here.
Key points:
- T1 coincides with growth stage (GS) 32 and the emergence of leaf 3, the first of the economically important leaves in wheat.
- FAR has extended the T1 window to late GS 31 - GS 33 to provide additional flexibility.
- Despite seasonal differences, FAR trials showed that different triazoles largely provided comparable disease control, yields and economic returns.
- This means there are options when considering what triazole to apply at T1.
- However, lower yield response to fungicide in 2025-26 demonstrated it was possible to overspend on fungicide.
- Growers can adopt resistance management practices without compromising on performance or profitability.