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Position: Home > Articles > Co-toxicity and Effect of Mixtures of Fenaminstrobin and Difenoconazole Against Mycosphaerlla melonis of Watermelon Journal of Agriculture 2016,6 (5) 28-32

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

作  者:
郑雪松;茹李军;张智能;李志念;丑靖宇;邢家华;陈宇
单  位:
中化农化有限公司;沈阳化工研究院有限公司;浙江省化工研究院有限公司
关键词:
西瓜蔓枯病;烯肟菌胺;苯醚甲环唑;24%烯肟菌胺·苯醚甲环唑悬浮剂;联合毒力;田间防效
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。
译  名:
Co-toxicity and Effect of Mixtures of Fenaminstrobin and Difenoconazole Against Mycosphaerlla melonis of Watermelon
作  者:
Zheng Xuesong;Ru Lijun;Zhang Zhineng;Li Zhinian;Chou Jingyu;Xing Jiahua;Chen Yu;Sinochem Agro Co., Ltd.;Shenyang Research Institute of Chemical Industry Co., Ltd.;Zhejiang Research Institute of Chemical Industry Co., Ltd.;
关键词:
Gummy Stem Blight of Watermelon;;Fenaminstrobin;;Difenoconazole;;24% Fenaminstrobin · Difenoconazole SC;;Co-toxicity;;Field Efficacy
摘  要:
The toxicity of fenaminstrobin, difenoconazole and their mixtures on Mycosphaerlla melonis weretested by toxic media method. The results showed that, the EC_(50) of the mixtures at the ratio of 1:0, 0:1, 5:1, 3:1,1:1, 1:3 and 1:5 were 17.6, 0.22, 0.68, 0.63, 0.35, 0.28 and 0.26 mg/L, respectively. And the co-toxicity was182.70, 134.63, 124.16, 104.33 and 101.29, respectively. Field efficacy tests showed that the control effect of 24% fenaminstrobin·difenoconazole SC on gummy stem blight of watermelon was better. Gummy stem blight ofwatermelon was controlled well by spraying 24% fenaminstrobin ·difenoconazole SC at the concentration of 200- 400 mg/L. The mixtures of fenaminstrobin and difenoconazole at the ratio of 5:1, 3:1 and 1:1 hadsynergism on Mycosphaerlla melonis, and the ratio of 1:3 and 1:5 had additive action. 24% fenaminstrobin·difenoconazole SC can be applied to control gummy stem blight in practical production.

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