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Developing IPM strategies for septoria tritici blotch on winter wheat

Developing IPM strategies for septoria tritici blotch on winter wheat

Steven Kildea, Teagasc, CELUP, Oak Park

Septoria tritici blotch continues to be the most economically destructive disease of Irish winter wheat crops. The loss of multisite fungicide chlorothalonil in 2020 further emphasised the need to develop fully integrated disease control strategies to combat the disease. Such strategies must utilise all available means of STB control. Here we will identify these different components, ranging from varietal resistances and time of sowing, to fungicide timings and choice of fungicide active, identifying their strengths and how they can be built upon to maximise control. Equally it is vital to be aware of how the disease adapts to overcome these measures and what mitigation measures must be put in place to prevent or delay these.