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通过7种进口杀菌剂防治玉米中后期病害对比试验,发现在药后10d和药后20d,处理区7种杀菌剂对玉米褐斑病和弯孢霉叶斑病均能起到较好的防治效果;处理区保叶率普遍高于对照区,保叶效果9.82%~14.16%;处理区较对照区亩增产37.9~72.4kg,增产幅度5.6~10.8%。综合人工、防治效果和经济效益等因素,推荐使用30g/L苯甲·丙环唑乳油(爱苗)20m L/亩或25%吡唑醚菌酯乳油(凯润)30m L/亩进行玉米中后期玉米“一防双减”病害防控。
Through the comparison of seven kinds of fungicides for controlling mid-late stage disease in corn, it was found that seven kinds of fungicides in the treated area could control corn brown spot and curvularia leaf spot easily after 10 days and 20 days after treatment The leaf area of the treatment area was generally higher than that of the control area, and the effect of leaf protection was 9.82% -14.16%. The treatment area had a yield increase of 37.9-72.4 kg and a yield increase of 5.6-10.8% compared with the control area. Comprehensive artificial, control effects and economic benefits and other factors, the recommended 30g / L benzopirone EC (Ammo) 20m L / mu or 25% pyraclostrobin EC (Kai Run) 30m L / mu for corn Mid and late corn “a double” "disease prevention and control.