应用麦田除草剂常能减轻小麦纹枯病的危害。本试验用PDA平皿测定法测定了绿麦隆、丁草胺、禾草灵、苏先2号和T6376对小麦纹枯病菌的抑制能力,并进行了田间小区试验。 一、皿测试验 在含有梯度浓度的除草剂PDA平板上接种小麦纹枯病菌的菌落圆片,培养一周后,测量菌落生长直径,以除草剂防治田间草害的常规用量为限量,抑菌率超过50%的药剂有绿麦隆 Application of wheat field herbicides can often reduce the risk of wheat sheath blight. In this study, the determination of chlorothalonil, butachlor, grass grass, Su Xian 2 and T6376 on wheat sheath blight fungi were determined by PDA plate assay, and the field plot test was conducted. First, the test dish Inoculated with a gradient concentration of herbicides on PDA plates Rhizoctonia cereal discs inoculated, cultured a week later, measuring the diameter of colony growth, the conventional amount of herbicide to control field grass damage is limited, antibacterial The rate of more than 50% of the agents are chlorotoluron