Control Effect of Different Fungicides on the Sheath Blight of Rice
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.
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