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粉锈宁（三唑酮）是防治小麦锈病和白粉病的主要药剂，在控制病害流行、保障小麦高产稳产起到了重要作用。但由于长期单一使用，已开始显示出抗药性。据我们测定，经常使用药剂地区，小麦锈菌和白粉菌的菌株间对粉锈宁的敏感性有着明显差异，这种差异比基本上未用药剂地区要大?
Triadimefon (triadimefon) is the main agent for controlling wheat rust and powdery mildew and plays an important role in controlling the epidemic and guaranteeing the high and stable yield of wheat. However, due to long-term single use, has begun to show resistance. According to our tests, there is a clear difference between the susceptibility of triadimefon to strains of wheat rust and powdery mildew frequently used in the medicinal area, which is greater than in areas that are largely unused.