烯肟菌胺与苯醚甲环唑对西瓜蔓枯病菌的联合毒力及防效

doi:10.11923/j.issn.2095-4050.cjas15090006

农学学报 ›› 2016, Vol. 6 ›› Issue (5): 28-32.doi: 10.11923/j.issn.2095-4050.cjas15090006

所属专题：园艺

烯肟菌胺与苯醚甲环唑对西瓜蔓枯病菌的联合毒力及防效

郑雪松,茹李军,张智能,李志念,丑靖宇,邢家华,陈宇

中化化肥有限公司,中化化肥有限公司,中化农化有限公司技术部,沈阳化工研究院有限公司新农药创制与开发国家重点实验室,沈阳化工研究院有限公司新农药创制与开发国家重点实验室,浙江省化工研究院有限公司国家南方农药创制中心浙江基地,中化农化有限公司技术部

收稿日期:2015-09-12 修回日期:2015-10-20 接受日期:2015-10-30 出版日期:2016-06-01 发布日期:2016-06-01
通讯作者: 茹李军 E-mail:xuesong716@163.com
基金资助:
中化股份科技投入计划项目“新型Strobilurin杀菌混剂开发与应用技术深入研究”(092013011y)。

Co-toxicity and Effect of Mixtures of Fenaminstrobin and Difenoconazole Against Mycosphaerlla melonis of Watermelon

茹李军,,,, and

Received:2015-09-12 Revised:2015-10-20 Accepted:2015-10-30 Online:2016-06-01 Published:2016-06-01

摘要/Abstract

摘要： 为明确烯肟菌胺与苯醚甲环唑不同比例混配对西瓜蔓枯病菌联合作用类型，采用含毒介质法测定了烯肟菌胺与苯醚甲环唑及其5 种配比对西瓜蔓枯病菌的毒力；并在田间测定了24%烯肟菌胺·苯醚甲环唑悬浮剂对西瓜蔓枯病防效。结果表明：烯肟菌胺与苯醚甲环唑及5:1、3:1、1:1、1:3 及1:5 混配对西瓜蔓枯病菌的EC50值分别是17.6、0.22、0.68、0.63、0.35、0.28、0.26 mg/L；共毒系数分别是182.70、134.63、124.16、104.33 和101.29。在西瓜蔓枯病发病初期连续喷施24%烯肟菌胺·苯醚甲环唑悬浮剂有较好防效，推荐剂量为200~400 mg/L。烯肟菌胺与苯醚甲环唑5:1、3:1 及1:1 配比对西瓜蔓枯病具有增效作用，1:3和1:5配比具有相加作用。24%烯肟菌胺·苯醚甲环唑悬浮剂可用于防治西瓜蔓枯病。

关键词: 水环境承载力, 水环境承载力, 层次分析法, 向量模法, 江苏省

Abstract: [Objective][Method] The toxicity of fenaminstrobin, difenoconazole and their mixtures were tested by toxic media method on Mycosphaerlla melonis, in order to determine the combined effect of the mixtures.[Result]The results showed that, the EC50 of the mixtures at the ratio of1:0, 0:1, 5:1, 3:1, 1:1, 1:3,1:5 were 17.6、0.22、0.68、0.63、0.35、0.28、0.26mg/L, respectively.And the co-toxicity were 182.70, 134.63, 124.16,104.33,101.29, respectively. Field efficacy tests showed that the control effect of 24% fenaminstrobin.difenoconazole SC to gummy stem blight from watermelon was better. Gummy stem blight from watermelon can be controlled well by spraying 24% fenaminstrobin.difenoconazole SC once the disease occurs at the concentration of 200-400 mg/L.[Conclusion] The mixtures at the ratio of 5:1, 3:1 and 1:1 have synergism on Mycosphaerlla melonis, and the ratio of 1:3 and 1:5 have additive action. 24% fenaminstrobin and difenoconazole SC can be applied to control gummy stem blight in practical production.

中图分类号:

TQ450

郑雪松,茹李军,张智能,李志念,丑靖宇,邢家华,陈宇. 烯肟菌胺与苯醚甲环唑对西瓜蔓枯病菌的联合毒力及防效[J]. 农学学报, 2016, 6(5): 28-32.

茹李军,,,, and . Co-toxicity and Effect of Mixtures of Fenaminstrobin and Difenoconazole Against Mycosphaerlla melonis of Watermelon[J]. Journal of Agriculture, 2016, 6(5): 28-32.

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烯肟菌胺与苯醚甲环唑对西瓜蔓枯病菌的联合毒力及防效

Co-toxicity and Effect of Mixtures of Fenaminstrobin and Difenoconazole Against Mycosphaerlla melonis of Watermelon

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