不同浓度杀菌剂对甜菜褐斑病防治效果研究  

The Control Efficiency of Different Concentration Fungicides on Cercospora Leaf Sport of Beet

作　　者：郝永丽[1] 高博[1] 胡海波[1] 王雪洁 贺磊[1] 刘畅[1] 史树德[2] HAO Yong - li;GAO Bo;HU Hai - bo;WANG Xue - jie;HE Lei;LIU Chang;SHI Shu - de(Chifeng Academy of Agricultural and Animal Husbandry Sciences, Inner Mongolia;Agronomy College, Inner Mongolia Agricultural University, Inner Mongolia)

机构地区：[1]内蒙古赤峰市农牧科学研究院 [2]内蒙古农业大学农学院

出　　处：《中国甜菜糖业》2018年第2期30-32,共3页China Beet & Sugar

基　　金：国家甜菜产业技术体系赤峰综合试验站建设项目.

摘　　要：本着减少农药用量的目的，对目前生产中常用的几种防治甜菜褐斑病的杀茵剂进行不同浓度配比比较实验，以期筛选出防治该病更高效低毒的化学药剂及浓度配比。试验结果发现苯醚甲环唑6．67e．／亩的相对防效为43．50—55．0％；克茵丹41．67g／亩相对防效为36．53-42．58％，这两种处理可在生产中考虑应用。另外4．0mL／亩的氟硅唑对甜菜褐斑病的防效相当明显，达到50．59％，建议生产中可应用上述浓度配比的该药剂与其它药剂交替使用防治甜菜褐斑病。In order to reduce the use of pesticide, several kinds of fungicides were mixed with different concen- tration ratio and used for controling Cercospora leaf spot of beet. According to the principle of high efficiency and low toxicity, the most suitable concentration ratio of fungicides was screened out. The results showed that the rel- ative protective effect of benzole was 43.50 - 55.0% with the use amount of 6. 67 g/mu. The relative defense effect of captan was 36. 53 -42. 58% with the use amount of 41.67 g/mu. These two fungicide treatments can be considered in production. Flusilazole with the use amount of 4. 0 mL/mu showed quite obvious control effi- ciency, and the relative protective effect was 50. 59%. So flusilazole with the above concentration was suggested to be used in the production with other pesticides interchangeably to control Cercospora leaf spot of beet.

关 键 词：杀菌剂 甜菜褐斑病 防治效果 

分 类 号：S566.3[农业科学—作物学]