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为寻找新型、经济有效的杀菌剂,笔者开展有50%苯甲·丙环唑EW对水稻纹枯病的防效及增产作用的试验研究。结果表明,50%苯甲·丙环唑EW每667m2用9～15mL时,随用药量的提高,对水稻纹枯病的防效表现为相应增加,且50%苯甲·丙环唑EW9mL/667m2的防效与30%爱苗15mL/667m2的防效相似。在纹枯病发病初期和中期两次用50%苯甲·丙环唑EW防治,能将病情控制在较低水平下,且能增产及挽回产量15%～25%,建议50%苯甲·丙环唑EW的用量为12～15mL/667m2。
In order to find a new and cost-effective fungicide, the author conducted a pilot study on the control efficacy and yield increase of 50% benzopregazole EW against rice sheath blight. The results showed that the control efficacy of 50% benzopu-pyrazole EW per 667m2 for 9-15mL was correspondingly increased with the increase of the dosage, and the 50% 667m2 control effect and 30% Aimiao 15mL / 667m2 similar effect. In the early and mid-term incidence of sheath blight with 50% benzopu-pyrazole EW control, the disease can be controlled at a low level, and can increase production and restore 15% ~ 25%, the proposed 50% benzene Propiconazole EW was used in an amount of 12-15 mL / 667 m2.