氟醚菌酰胺和己唑醇混用对水稻纹枯病菌的抑制作用  

The Fungicidal Activity of a Fungicide LH-2010A and Hexaconazole to Rice Sheath Blight Fungus

作　　者：张秀焕[1] 翟明涛[1] 徐辉 刘杰 王开运[1] 

机构地区：[1]山东农业大学植物保护学院,山东泰安271018 [2]山东省联合农药工业有限公司,济南250100

出　　处：《农药》2014年第3期222-224,共3页Agrochemicals

基　　金：国家"十二五"科技支撑计划(2011BAE06B02)

摘　　要：【目的】研究氟醚菌酰胺（LH-2010A）和己唑醇混用对水稻纹枯病的防治效果。【方法】采用菌丝生长速率法测定氟醚菌酰胺与己唑醇混用对水稻纹枯病菌的毒力，并进行田间药效试验进一步验证。【结果】氟醚菌酰胺与己唑醇按5：5（1：1）、6：4、7：3、8：2、9：1混用，EC50值分别为0．0168、0．0232、0．0345、0．081O、0．1345mg／L。按1：1混配进行田间药效试验表明：60-90ga．i．／hm2的用量对纹枯病菌防效达90．67％-93．36％。【结论】氟醚菌酰胺与己唑醇按1：1（5：51比例混用后对水稻纹枯病菌有较好的防治效果。[Aims] The paper aims to research the inhibitory activity of the mixture of LH-2010A and hexaconazole on rice sheath blight fungus. [Methods] The inhibition effect of the mixed fungicide of LH-2010A and hexaconazole on rice sheath blight fungus was measured by mycelium growth rate method. Then, field efficacy trials were preformed and the result was further validated. [Results] Among the mixtures of LH-2010A and hexaconazole with ratios of 1 ： 1（5 ： 5）, 6 ： 4, 7 ： 3, 8 ： 2 and 9 ： 1, the ECs0 values were 0.0168, 0.0232, 0.0345, 0.0810, 0.1345 mg/L respectively. According to the optimum proportion of 1 ： 1, field efficacy trials indicated that the control effect is up to 90.67-93.36% with the dosage of 60-90 g a.i./ha. [Conclusions] The mixed fungicide of LH-2010A and hexaconazole with 1 ： 1 ratio had good control effect on rice sheath blight fungus.

关 键 词：氟醚菌酰胺 己唑醇 药剂混用 水稻纹枯病菌 田间药效 

分 类 号：S435.111.41[农业科学—农业昆虫与害虫防治]