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采用小区试验法进行9%毒死蜱·烯唑醇悬浮种衣剂防治玉米地下害虫和玉米丝黑穗病田间药效试验。结果表明:9%毒死蜱·烯唑醇悬浮种衣剂在药种比为1:50(质量比,下同)和1:60时,对地下害虫的防效分别为86.22%和78.10%,对玉米丝黑穗病的防效为82.51%和74.47%,与对照药剂48%毒死蜱乳油(1:500)拌种、5%烯唑醇干粉种衣剂(1:100)包衣相比差异均不显著;在药种比为1:70时,9%毒死蜱·烯唑醇悬浮种衣剂对地下害虫和玉米丝黑穗病的防效分别为68.45%和57.88%,与对照药剂20%福·克悬浮种衣剂(1:50)包衣相比差异不显著,与对照药剂48%毒死蜱乳油(1:500)拌种、5%烯唑醇干粉种衣剂(1:100)包衣相比差异显著。
Field trial of 9% chlorpyrifos / diniconazole suspension seed coating for control of maize underground smut and maize head smut by cell plot test. The results showed that the control efficacy of 9% chlorpyrifos / diniconazole suspension seed coating on underground pests was 86.22% and 78.10% at the ratio of 1:50 (mass ratio, the same below) and 1:60 respectively. The control effects of maize smut were 82.51% and 74.47%, respectively, which were significantly lower than those of control (48%), chlorpyrifos EC (1: 500) Not significant; when the drug ratio was 1:70, the control efficacy of 9% chlorpyrifos and diniconazole suspension seed coating on underground smut and maize head smut were 68.45% and 57.88%, respectively, compared with 20% · Compared with the control agent 48% chlorpyrifos EC (1: 500), 5% diniconazole dry powder coating (1: 100) coating Significant difference compared to.