甲·咪·福防治水稻立枯病的配方筛选  

Formulation Screening of Metalaxyl·Prochloraz·Thiram to Control Rice Seedling Blight

作　　者：倪淑凤[1] 宋景荣 刘丽玲[3] 邵喜文[1] 

机构地区：[1]吉林农业大学,长春130118 [2]呼伦贝尔市农业科学研究所,呼伦贝尔162650 [3]吉林出入境检验检疫局,长春130062

出　　处：《吉林农业大学学报》2015年第3期287-289,295,共4页Journal of Jilin Agricultural University

基　　金：吉林省科技发展计划项目(20130204036NY)

摘　　要：采用菌丝生长速率法测定了甲霜灵、咪鲜胺和福美双3种单剂及5种混配制剂对水稻立枯丝核菌(Rhizoctonia solani)和禾谷镰刀菌(Fusarium graminearum)的室内联合毒力。试验结果表明:3种单剂中咪鲜胺对水稻立枯丝核菌和禾谷镰刀菌的抑制作用最明显,有效中浓度(EC50)分别为0.61μg/m L和0.91μg/m L。5种配比中H1[V(甲霜灵)∶V(咪鲜胺)∶V(福美双)=2∶1∶5]、H2[V(甲霜灵)∶V(咪鲜胺)∶V(福美双)=2.5∶1.0∶4.5]对水稻立枯丝核菌和禾谷镰刀菌的共毒系数分别为174.2,201.83和483.75,442.95,增效作用明显,可作为田间试验的优选配方。By mycelium growth rate method, toxicity of Metalaxyl, Prochloraz and Thiram to Rhizoc- tonia solani and Fusarium graminearum was determined and joint toxicity of 5 preparations mixed with the above three fungicides was tested. The results showed that of the three single fungicides, toxicity of Prochloraz to R. solani and F. graminearum was the best, and ECso was 0. 61 μg/mL and 0. 91 μg/mL respectively. H1 （Metalaxyl ： Prochloraz ： Thiram = 2 ： 1 ： 5）and H2（ Metalaxyl： Prochloraz：Thiram = 2.5 ： 1.0 ： 4. 5） had the strongest synergistic action with CTC 174.2 and 201.83 to R. solani, 483.75 and 442. 95 to F. graminearum. These 2 preparations will be used in field experiment.

关 键 词：水稻 立枯丝核菌 禾谷镰刀菌 联合毒力 共毒系数 配方筛选 

分 类 号：S435.111.4[农业科学—农业昆虫与害虫防治]