A combination of single and multisite chemistry will keep crops protected for longer, says Adama technical manager David Griffiths. “The T2 fungicide timing is the most critical treatment for the protection of wheat crops as its application at GS37-39 provides the ideal opportunity to ensure the main light-capturing leaves – leaf 2 and the newly emerged flag leaf – remain clean and free of the dominant yield-robbing diseases, septoria tritici and rusts,” David explains. Even though weather conditions have been relatively favourable in recent weeks, he says there is still plenty of both diseases present in crops. “Any disease spores…