A dramatic decline in the performance of several fungicide groups against ramularia means that chemical control choices in barley have narrowed to just one mode of action. As a result, a multi-site protectant should be included at booting (T2) in spring barley crops, as it is the only option left for ensuring upper leaves remain clean and ramularia controlled. Two years ago, the azoles and SDHIs were still doing a good job of controlling the disease and growers had a […]