Azoxystrobin was the first commercial strobilurin fungicide developed by Zeneca company with excellent fungicidal activity, broad anti-fungi spectrum and good safety to environment. The fungicidal activity of strobilurins stems from the fact that they can specifically inhibit the complex III in mitochondrial respiration of fungi. However, the resistance to strobilurins occurred just two years after the fungicides were introduced into the market. The objectives of this study were to establish the baseline se...