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对40%苯醚·吡唑醚菌酯悬浮剂防治西瓜蔓枯病的效果进行了田间试验,结果表明:40%苯醚·吡唑醚菌酯悬浮剂15m L、20m L、25m L/667m2三个处理二次施药后7d和三次施药后10d的防治效果分别为68.73%、70.01%和70.21%,79.07%、80.84%和81.60%,相当于单剂250g/L吡唑醚菌酯乳油24m L/667m2和常用药剂22.5%啶氧菌酯悬浮剂40m L/667m2,略高于单剂10%苯醚甲环唑水分散粒剂60g/667m2,两次防效在三个处理剂量之间不存在着显著性差异,建议使用制剂量15m L~25m L/667m2。
A field experiment was conducted on the effect of 40% phenylpyrrolidone-pyraclostrobin as a control agent on the prevention and cure of watermelon stem-blight. The results showed that: 40% of phenyl-pyraclostrobin suspension concentrate 15m L, 20m L, 25m L / 667m2 The results showed that the control effect of the three treatments on the 7th day after the second application and on the 10th day after the third application were 68.73%, 70.01% and 70.21%, 79.07%, 80.84% and 81.60% respectively, equivalent to 250g / L pyraclostrobin EC 24m L / 667m2 and commonly used agents 22.5% Picoxystrobin 40m L / 667m2, slightly higher than a single dose of 10% difenoconazole water dispersible granules 60g / 667m2, twice in three treatment doses There is no significant difference between the proposed dosage of 15m L ~ 25m L / 667m2.