Our cereal fungicide trial in Hampshire last year clearly demonstrated that a programme including two SDHI products will increase yield and give you a return over and above the cost of the treatment.
With regards to an anti-resistance strategy using low rates means there is less selection for resistance but this will increase risk of disease. Most of our current fungicide actives are protectant with very little curative action.
If we aim to leave out a T0 or use an azole +CTL mix at T1, this may suit an anti resistance strategy but is a high risk strategy if Septoria pressure is high. Our unpredictable weather forces us to apply insurance sprays, especially now that most of our actives are working as a protectant.