不同杀菌剂对水稻纹枯病的防治效果

Control Effect of Different Fungicides on the Sheath Blight of Rice

为探寻重庆市万州区水稻纹枯病适宜的防治药剂,以Q优6号水稻品种为试验材料,设置了5个不同的杀菌剂处理和1个对照处理,比较了不同处理水稻纹枯病的防治效果及产量情况。结果表明:9%吡唑醚菌酯微囊悬浮剂、40%苯甲·丙环唑微乳剂对水稻纹枯病具备良好的防治效果,在第2次施药后24天,防治效果分别达到了90.37%和79.74%。同时,在喷施上述2种药剂后,水稻产量明显提升,相较于不施药处理,水稻产量分别提高了14.21%和11.18%。因此,在水稻生产过程中推荐使用9%吡唑醚菌酯微囊悬浮剂、40%苯甲·丙环唑微乳剂作为水稻纹枯病的防治药剂。

In order to find suitable control agents for rice sheath blight in Wanzhou District of Chongqing,five different fungicides and one control treatment were used to compare the control effect and yield of rice sheath blight under different treatments,using Qy-ou No.6 rice variety as experimental material.The results showed that 9%pyrazole microcapsule suspension and 40%benzoyl propi-conazole microemulsion had good control effect on rice sheath blight,and the control effect reached 90.37%and 79.74%respective-ly 24 days after the second application.At the same time,after spraying the above two agents,the rice yield was significantly in-creased,compared with no treatment,rice yield increased by 14.21%and 11.18%.Therefore,it is recommended to use 9%pyrazoli-um microcapsule suspension and 40%benzoyl propiconazole microemulsion as the control agents for rice sheath blight.