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为明确2.5%咪鲜·吡虫啉悬浮种衣剂防治水稻苗期病害的适宜剂量,以水稻品种龙粳26为试材,采用随机区组设计的方法,进行了2.5%咪鲜.吡虫啉悬浮种衣剂对水稻立枯病和恶苗病防治效果的研究。结果表明:2.5%咪鲜.吡虫啉悬浮种衣剂20～25g.kg-1能有效防治恶苗病的发生,苗床和本田的防治效果分别达到了100%和99.3%,对水稻立枯病具有较强的抑制作用,其病情指数防效分别达到了72.1%和79.4%,对水稻出苗及正常生长安全,是一种比较理想的防治水稻苗期病害药剂。
In order to clarify the appropriate dose of 2.5% imidacloprid suspension seed coating to control rice seedling stage disease, the rice variety Longjing 26 was used as experimental material and 2.5% imidacloprid suspension seed dressing Study on the Control Effect on Rice Blight and Bakanae Disease. The results showed that the 2.5% imidacloprid suspension seed coating agent 20 ~ 25g.kg-1 could effectively prevent and treat the occurrence of stump disease, the control effect of seedbed and Honda reached 100% and 99.3%, respectively, Strong inhibitory effect, the disease index control effect reached 72.1% and 79.4%, respectively, which is an ideal agent for preventing and curing rice seedling diseases due to the emergence and normal growth of rice.