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从70年代开始,水稻纹枯病的药剂防治主要是应用井岗霉素,取得了很好的防治效果。但由于长期单一使用井岗霉素,有的稻区反映需要加大药量或增加施药次数,似有抗药性产生的预兆。因此,急需探寻替代井岗霉素的新杀菌剂。从1983年开始,我们进行了一系列新杀菌剂的药效筛选,结果发现灭锈胺、担菌灵、禾穗宁、纹枯净和纹枯灵等新杀菌剂对纹枯病都有很好的防病保产效果,其中禾穗宁(C_(19)H_(21)ClN_2O)具有防效
Since the 1970s, the control of rice sheath blight is mainly Jinggangmycin, and achieved good control effect. However, due to long-term single use of Jinggangmycin, some areas reflect the need to increase the dose or increase the number of pesticides, seems to have the harbinger of drug resistance. Therefore, there is an urgent need to find a new fungicide to replace Jinggangmycin. From 1983 onwards, we conducted a series of new fungicide efficacy screening and found that fenvaleramide, benzimidazole, Wo Su Ning, tattoo net and clenbuterol and other fungicides on sheath blight are very Good effect of disease prevention and protection, of which Wo Su Ning (C_ (19) H_ (21) ClN_2O) has anti-efficacy