LIU Runqiang,CAO Qianhui,WANG Qingjun,et al.Co-toxicity of Carbamic Acid/Fluoxastrobin Complex Against Five Landscape Plant Phytopathogenic Fungi[J].Northern Horticulture,2016,40(17):120-124.[doi:10.11937/bfyy.201617028]
缬霉威和氟嘧菌酯混配对五种园林植物病害的联合毒力
- Title:
- Co-toxicity of Carbamic Acid/Fluoxastrobin Complex Against Five Landscape Plant Phytopathogenic Fungi
- 文献标志码:
- A
- 摘要:
- 以龙柏立枯病病原菌、冬青叶斑病病原菌、草坪霜霉病病原菌、夹竹桃褐斑病病原菌和蔷薇灰霉病病原菌为试验菌株，采用室内生长速率法，研究了缬霉威和氟嘧菌酯混配对5种园林植物病害的联合毒力作用。结果表明：当缬霉威和氟嘧菌酯的混配比例为1∶3时，对龙柏立枯病病原菌和冬青叶斑病病原菌的共毒系数为分别为195.03和201.48；混配比例为3∶1时，对草坪霜霉病病原菌的共毒系数为196.29；混配比例为1∶5时，对夹竹桃褐斑病病原菌的共毒系数为195.27；混配比例为1∶10时，对蔷薇灰霉病病原菌的共毒系数为198.89。表明缬霉威和氟嘧菌酯按适当比例混配对此5种园林植物病原菌具有明显的增效作用。
- Abstract:
- The co-toxicity of carbamic acid，fluoxastrobinole and their mixture against cypress of withering disease pathogens，holly leaf spot disease pathogens，lawn frost mildew pathogens，oleanders speckle disease pathogens and roses gray mildew pathogens were studied based on the mycelial growth rate method in the laboratory.The results indicated that when the ratio of the mixture of carbamic acid and fluoxastrobinole was 1∶3，the co-toxicity cofficient (CTC) against mycelial growth of cypress of withering disease pathogens and holly leaf spot disease pathogens were 195.03 and 201.48， respectively.When the ratio of the mixture was 3∶1，the CTC against mycelial growth of lawn frost mildew pathogens was 196.29.When the ratio of the mixture was 1∶5，the CTC against mycelial growth of oleanders speckle disease pathogens was 195.27.When the ratio of the mixture was 1∶10，the CTC against mycelial growth of roses gray mildew pathogens was 198.89.The results suggested that carbamic acid and fluoxastrobin had significant synergistic activity against five landscape plant phytopathogenic fungi when combined by appropriate ratio.
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备注/Memo
第一作者简介：刘润强（1983-），男，河南许昌人，博士，讲师，现主要从事农药复配及农药残留分析检测等研究工作。E-mail：liurunqiang1983@126.com.基金项目：河南科技学院高层次人才引进启动资助项目（103010615001）；河南省博士后基金资助项目（159831）。